bigram

This is a table of type bigram and their frequencies. Use it to search & browse the list to learn more about your study carrel.

bigram	frequency
regions sub	1565
new zealand	638
north america	583
south america	512
south wales	436
new south	428
general distribution	330
australian sub	329
ethiopian oriental	317
oriental australian	317
neotropical nearctic	316
european miocene	315
feet long	297
united states	273
american tertiary	263
oriental region	246
south africa	244
whole region	233
new guinea	233
present day	218
peculiar genera	189
australian region	177
one species	171
west africa	170
south american	170
upper silurian	169
two feet	161
old world	158
lower silurian	149
la plata	147
neotropical region	147
brazilian caves	146
ethiopian region	141
th th	139
three feet	137
two palms	133
natural history	132
european eocene	129
nearctic region	127
three palms	126
one another	126
six feet	119
animal life	116
feet high	115
two species	114
let us	113
two digits	111
tropical regions	110
closely allied	110
costa rica	106
liquation cakes	105
tropical africa	105
almost cosmopolite	102
years ago	102
four feet	102
extinct genus	102
de re	102
american pliocene	100
one hundred	100
re metallica	100
tropical america	99
rocky mountains	99
long wall	98
large number	98
th century	98
see note	97
digits wide	96
south australia	96
five feet	96
red sandstone	95
three digits	95
pliocene period	94
philippine islands	94
upper miocene	94
peculiar species	93
pliocene deposits	93
indian miocene	93
northern hemisphere	92
peculiar forms	91
upper part	90
glacial period	89
taken place	86
extinct species	86
greater part	86
natural size	85
took place	85
general remarks	84
single species	84
geographical distribution	83
european pliocene	83
south europe	82
central europe	80
miocene period	79
lower cretaceous	78
oriental regions	78
lower jaw	78
de natura	78
old red	77
see also	77
new york	76
water fishes	74
wide range	74
south temperate	74
north africa	73
west indian	72
one side	72
sandwich islands	72
one foot	72
professor marsh	72
organic remains	70
dry land	70
arctic regions	70
central america	69
papuan islands	69
american post	69
eastern hemisphere	69
first time	69
lower part	68
extinct animals	67
one time	67
half feet	67
tertiary period	67
first place	67
north china	67
lower end	67
fossil remains	66
north temperate	66
many cases	66
nitric acid	65
living species	65
inches long	64
east africa	64
shall find	64
glacial epoch	63
indian islands	63
several species	62
malay islands	62
shall see	62
well known	62
palms long	62
temperate regions	61
feet wide	60
almost wholly	60
oriental genera	60
professor owen	59
widely distributed	59
natura fossilium	59
many species	59
much less	59
living things	58
central india	58
cretaceous period	58
two genera	57
tertiary era	57
american eocene	56
one hand	56
also found	56
geological record	56
eocene period	55
new species	54
existing species	54
tell us	54
living beings	54
eight feet	53
australian genera	53
geological time	53
past history	53
peculiar genus	53
natural science	53
considerable number	53
exhausted liquation	52
thousand years	52
extinct genera	52
ethiopian genera	52
north american	52
large size	51
twelve feet	51
three species	51
distinct family	51
well represented	50
west coast	50
western europe	50
temperate america	50
per cent	50
million years	50
upper cretaceous	50
nearly allied	50
upper end	50
present time	49
comparatively recent	49
temperate zone	49
now living	49
long time	49
oriental genus	49
digits long	49
tertiary deposits	48
fiji islands	48
american continent	48
closely related	48
de la	48
digit thick	48
carboniferous period	47
digits thick	47
ten feet	47
miocene deposits	47
far back	47
found also	47
physical geography	47
new caledonia	46
great britain	46
hundred miles	46
long ago	46
british museum	46
australian regions	45
palm wide	45
much greater	45
land animals	45
marine animals	45
wide distribution	45
tropical south	45
much larger	45
small size	45
palms wide	45
water fish	44
one part	44
silurian rocks	44
various parts	44
one end	44
two hundred	44
zoological regions	43
highly characteristic	43
now found	43
pacific islands	43
malay sub	43
one genus	43
good hope	43
natural selection	43
nearctic regions	43
neotropical regions	43
characteristic genera	42
extinct forms	42
foot wide	42
allied species	42
large proportion	42
will now	42
mascarene islands	42
square miles	41
cupellation furnace	41
two kinds	41
like manner	41
malay archipelago	41
african sub	41
lower greensand	40
fossil species	40
vena profunda	40
every part	40
three genera	40
become extinct	40
living forms	40
de ortu	40
marine fishes	40
large part	40
bony plates	40
stratified rocks	40
take place	40
two great	40
western australia	39
tropical seas	39
solidified juices	39
malayan sub	39
lead alloy	38
feet thick	38
many parts	38
great number	38
new mexico	38
hind limbs	38
modern times	37
transverse wall	37
iron plate	37
higher animals	37
middle ages	37
little doubt	37
ethiopian regions	37
universally distributed	37
upper jaw	37
professor huxley	37
far north	37
upper greensand	37
oamaru series	37
london clay	37
first appearance	37
fresh water	37
good deal	36
may well	36
enable us	36
north australia	36
many digits	36
nine feet	36
great extent	36
eastern states	36
second long	36
upper eocene	36
west australia	36
tells us	36
professor cope	36
west indies	36
middle devonian	35
will find	35
western asia	35
jurassic period	35
del fuego	35
carboniferous rocks	35
british columbia	34
see fig	34
lower miocene	34
white chalk	34
new world	34
may perhaps	34
many years	34
atlantic islands	34
new forms	34
great numbers	34
geological survey	34
coal period	34
latter part	34
southern hemisphere	34
two regions	33
one libra	33
sir charles	33
iron plates	33
fresh waters	33
nova scotia	33
great size	33
water flows	33
falkland islands	33
first edition	33
tierra del	33
central asia	33
upper amazon	33
half calf	33
lower cambrian	33
higher types	33
silver mines	33
vena dilatata	33
wholly confined	32
upper cambrian	32
great majority	32
one palm	32
american species	32
twenty feet	32
white wolf	32
four species	32
cretaceous rocks	32
buffalo land	32
silurian period	32
parting gold	32
san josecito	32
different species	32
east thibet	31
south kensington	31
modern world	31
national museum	31
newer pliocene	31
feet deep	31
physical conditions	31
higher forms	31
per ton	31
marine beds	31
mediterranean sub	31
indian ocean	31
widely scattered	31
history museum	31
one may	31
coal formation	31
devonian rocks	31
great deal	31
best known	31
shallow water	31
two groups	30
mountain ranges	30
still living	30
permian period	30
marine shells	30
de koninck	30
largely developed	30
known species	30
land shells	30
great series	30
minor triangle	30
life succession	30
charles lyell	30
lead ore	30
thirty feet	30
salt water	30
many others	30
land connection	30
lower eocene	29
peculiar family	29
either side	29
total number	29
may also	29
gives us	29
different kinds	29
great interest	29
six digits	29
fore limbs	29
ortu et	29
great antiquity	29
almost every	29
animal kingdom	29
et causis	29
liquation thorns	29
several regions	29
nineteenth century	29
great groups	29
american genus	29
thousand feet	29
far south	29
antimony sulphide	29
primitive man	29
forty feet	29
will explain	29
especially characteristic	29
altogether peculiar	29
blast furnace	29
well developed	29
great abundance	28
tertiary times	28
carboniferous limestone	28
now come	28
flowering plants	28
remarkable forms	28
long period	28
anthropoid apes	28
lower ordovician	28
chinese sub	28
temperate zones	28
stone age	28
characteristic animals	28
whole oriental	28
american genera	28
woolly rhinoceros	28
wealden strata	28
easily melt	27
three times	27
much smaller	27
miocene times	27
ever since	27
great rivers	27
important groups	27
malay peninsula	27
equatorial america	27
one peculiar	27
comparatively small	27
many forms	27
give us	27
mining law	27
hooked bar	27
solomon islands	26
now known	26
high himalayas	26
physical features	26
third long	26
lower carboniferous	26
north india	26
foot long	26
early period	26
iron rod	26
extensive family	26
see appendix	26
almost exclusively	26
iron axle	26
allied forms	26
venae dilatatae	26
may find	26
peculiar types	26
reader will	26
vegetable matter	26
will probably	26
seven feet	26
asia minor	26
peculiar families	26
species occur	26
middle eocene	26
manchurian sub	26
geological periods	26
distinct species	26
numerous remains	26
fine tin	26
far less	26
great variety	26
gigantic size	26
palms thick	26
three toes	26
found fossil	26
several genera	25
go back	25
large animals	25
something like	25
passed away	25
broken rock	25
hundred years	25
often found	25
molar teeth	25
now extinct	25
north atlantic	25
first sight	25
temperate south	25
west african	25
later period	25
various forms	25
palm thick	25
early tertiary	25
southern europe	25
iron tools	25
one half	25
miocene age	25
small islands	25
living animals	25
wooden handle	25
lower pliocene	25
arctic america	25
will speak	25
older rocks	25
ganoid fishes	25
cambrian rocks	25
wooden scrubber	24
fifty feet	24
digit wide	24
will show	24
east coast	24
european species	24
especially abundant	24
de veteribus	24
half digits	24
marine fossils	24
existing forms	24
nebular hypothesis	24
terrestrial animals	24
aquatic birds	24
last two	24
geological society	24
veteribus et	24
back part	24
found elsewhere	24
novis metallis	24
vegetable life	24
eastern united	24
dorsal fin	24
existing genera	24
almost certainly	24
also occurs	24
rugose corals	24
must also	24
almost equally	24
may see	24
two distinct	24
siwalik hills	24
various kinds	24
three centumpondia	24
well preserved	24
geological history	24
now know	24
species living	24
coal measures	24
generic types	24
whole series	24
pliocene times	24
et novis	24
another genus	24
great continents	23
joined together	23
sedimentary rocks	23
arctic circle	23
important genera	23
cut away	23
lesser weights	23
following genera	23
land surface	23
extinct mammalia	23
another species	23
single genus	23
one day	23
lead us	23
new red	23
tertiary strata	23
species found	23
precious metals	23
great group	23
two parts	23
geological period	23
rocky mountain	23
boulder clay	23
zoological features	23
great mass	23
widely separated	23
mexican sub	23
hundred feet	23
much like	23
four genera	23
states national	23
northern europe	23
great reptiles	23
five digits	23
somewhat similar	23
two peculiar	23
rio grande	23
great many	23
australian genus	23
may seem	23
great thickness	23
zoological characteristics	23
lower animals	23
thousand miles	22
blast furnaces	22
already referred	22
north sea	22
older pliocene	22
fossiliferous rocks	22
well marked	22
great sea	22
say nothing	22
two others	22
widely spread	22
vertebrate animals	22
now generally	22
another kind	22
now confined	22
permian rocks	22
lake baikal	22
glacial deposits	22
almost entirely	22
small stones	22
many respects	22
first discovered	22
show us	22
two pairs	22
species belonging	22
peculiar form	22
foot thick	22
like animals	22
small quantity	22
toothed drum	22
every one	22
right side	22
short time	22
five species	22
siberian sub	21
great part	21
large portion	21
characteristic forms	21
great lakes	21
earthen crucible	21
east australia	21
upper one	21
quite possible	21
human race	21
tertiary beds	21
aqua valens	21
total absence	21
large amount	21
tertiary rocks	21
fourth long	21
various species	21
christian era	21
larger proportion	21
generic forms	21
historical note	21
upright posts	21
two families	21
geological changes	21
like animal	21
laurentian rocks	21
west china	21
one group	21
one digit	21
venae profundae	21
warmer parts	21
warm climate	21
three hundred	21
many instances	21
five hundred	21
copper ore	21
secondary period	21
president hitchcock	21
lower one	21
iron ring	21
present state	21
many peculiar	21
small pieces	21
luxuriant vegetation	21
thirteen feet	21
south china	21
miocene fauna	21
fine sand	21
pliocene age	21
cape verd	21
sea level	21
great ice	21
human remains	21
now find	21
red sea	21
mammalian fauna	21
devonian period	21
american family	21
recent period	21
already stated	20
iron shovel	20
whitecliff bay	20
samoa islands	20
central africa	20
magnesian limestone	20
solar system	20
existing fauna	20
ice age	20
second furnace	20
new genera	20
small amount	20
three families	20
living matter	20
nearly related	20
physical changes	20
south carolina	20
closely resembling	20
scientific men	20
carboniferous age	20
general form	20
german translation	20
two small	20
africa oriental	20
four toes	20
three great	20
long tail	20
various ways	20
five years	20
fifteen feet	20
divining rod	20
deep sea	20
josecito cave	20
upper surface	20
long neck	20
varied forms	20
favourable conditions	20
one point	20
allied genus	20
southern states	20
alum bay	20
vertebral column	20
general character	20
region possesses	20
little later	20
large areas	20
various groups	20
will see	19
even now	19
also occur	19
allied form	19
another way	19
mesozoic period	19
water shells	19
tertiary formations	19
four times	19
human period	19
shaped like	19
long enough	19
may remain	19
stone implements	19
cemented together	19
three peculiar	19
northern regions	19
zoological society	19
fossil shells	19
professor chamberlin	19
continental plateaus	19
almost confined	19
white man	19
may say	19
shows us	19
still remain	19
iron implement	19
vast number	19
may add	19
rd th	19
georgii agricolae	19
always open	19
one place	19
small family	19
palms high	19
iron ore	19
de nat	19
part ii	19
well adapted	19
transverse walls	19
coral reefs	19
animal world	19
north latitude	19
dried cakes	19
earliest known	19
highly developed	19
hard parts	19
date back	19
already seen	19
may therefore	19
front part	19
deep water	19
iron rods	19
american cretaceous	19
less extent	19
one might	19
refining silver	19
ancient fauna	18
pearly nautilus	18
total length	18
galapagos islands	18
eocene strata	18
fossil animals	18
distinct sockets	18
first one	18
now live	18
chapter xii	18
northern india	18
iron bar	18
many places	18
north pacific	18
following way	18
greatly reduced	18
nearest allies	18
land birds	18
general way	18
careful study	18
lateral view	18
new types	18
two sides	18
norfolk island	18
modern science	18
arctic ocean	18
fully developed	18
south african	18
verd islands	18
one kind	18
modern period	18
american forms	18
numerous species	18
first furnace	18
two librae	18
fathoms deep	18
extinct mammals	18
extinct form	18
title page	18
toothed wheel	18
carbonic acid	18
present known	18
still less	18
sir william	18
south brazil	18
must therefore	18
southern australia	18
upper devonian	18
australian post	18
strictly confined	18
species now	18
natura eorum	18
general features	18
doubtful affinities	18
recent deposits	18
may now	18
gold ore	18
much better	18
de mensuris	18
professor newton	18
old german	18
middle one	18
range beyond	18
great changes	18
circumstantial evidence	18
silurian strata	18
jurassic rocks	18
middle part	18
buffalo bill	18
special interest	18
six inches	18
distinct families	18
principal vein	18
hundred thousand	18
long since	18
similar manner	17
eastern asia	17
continental india	17
eighteen feet	17
fossil state	17
characteristic mammalia	17
imperfectly known	17
chapter vi	17
feet distant	17
right angles	17
many points	17
large numbers	17
long ages	17
northern asia	17
copper bottoms	17
early history	17
warm regions	17
molar tooth	17
know nothing	17
almost universally	17
georgius agricola	17
chain pumps	17
great work	17
great importance	17
southern continent	17
temperate north	17
lesser antilles	17
america east	17
enormous size	17
common ancestor	17
entire family	17
several thousand	17
modern seas	17
may take	17
second cord	17
ordinary strake	17
main vein	17
molten lead	17
yet known	17
far away	17
one case	17
general succession	17
smoky hill	17
porto rico	17
new genus	17
german terms	17
two years	17
quite distinct	17
figure shows	17
curious fact	17
genera peculiar	17
copper smelting	17
oldest known	17
often called	17
small iron	17
red man	17
upper chamber	17
three inches	17
tropical forms	17
triassic period	17
long periods	17
main features	17
miocene strata	17
iron band	17
first two	17
zoological region	17
poorly represented	17
social life	17
ancient times	17
fourth part	17
less completely	17
allied genera	17
new hebrides	17
far beyond	17
chatham islands	17
somewhat different	17
upper trias	17
greater number	17
sandown bay	17
new jersey	17
juan fernandez	17
whose remains	17
recent times	17
eocene deposits	17
whole family	17
region cosmopolite	17
four inches	17
upper ordovician	16
two countries	16
exclusively confined	16
clear water	16
quite different	16
buenos ayres	16
common salt	16
now speak	16
several hundred	16
universal distribution	16
chapter ix	16
carboniferous series	16
temperate seas	16
assay furnace	16
third furnace	16
hays city	16
great family	16
aquatic animals	16
taking place	16
may yet	16
small cross	16
cambrian period	16
animals inhabiting	16
east europe	16
eocene age	16
six regions	16
equal portions	16
large enough	16
remarkable fact	16
next morning	16
cambrian age	16
silver ores	16
ancient life	16
general conclusions	16
recent years	16
many groups	16
comparatively little	16
toed ungulates	16
small proportion	16
northern part	16
seems probable	16
already mentioned	16
indian sub	16
mensuris et	16
pacific oceans	16
canine teeth	16
organic matter	16
euphrates valley	16
ranging back	16
furnace accretions	16
southern extremity	16
open country	16
uncut edges	16
vast numbers	16
aru islands	16
least two	16
taken away	16
primary divisions	16
except one	16
nd rd	16
old stone	16
black sea	16
just like	16
told us	16
found near	16
dead sea	16
west india	16
smaller ones	16
lead smelting	16
fossil forms	16
type specimen	16
extensive group	16
book vii	16
pacific railroad	16
recent discoveries	16
must always	16
hand list	16
may mention	16
similar way	16
small extent	16
present world	16
general structure	16
et ponderibus	16
chapter vii	16
large species	16
second place	16
embryonic development	16
now existing	16
sivalik hills	16
upper board	16
modern species	16
past changes	16
hard cakes	16
new worlds	16
extinct order	16
southern united	16
foot high	16
long series	16
one great	16
common sense	16
gilt tops	16
fathoms long	15
present condition	15
higher level	15
flows away	15
every direction	15
chapter xi	15
great quantity	15
eastern europe	15
boyd dawkins	15
mammalian remains	15
temperate climate	15
amazon valley	15
cretaceous sea	15
average value	15
swimming birds	15
third time	15
great american	15
british seas	15
argentiferous lead	15
far west	15
south latitude	15
succession theory	15
around us	15
great northern	15
found living	15
chapter iv	15
probable origin	15
permian age	15
takes place	15
great continental	15
short ton	15
extinct fauna	15
another group	15
terrestrial mollusca	15
many genera	15
african genera	15
opposite direction	15
iron wire	15
generally believed	15
great oceans	15
small portion	15
make use	15
lateral toes	15
region almost	15
small animals	15
every reason	15
specific forms	15
form part	15
brought forward	15
genera found	15
seychelle islands	15
per short	15
give rise	15
lingula flags	15
past time	15
great irish	15
almost universal	15
pure gold	15
central brazil	15
early man	15
iron clamps	15
lower ends	15
last century	15
great depths	15
palm long	15
later date	15
pure silver	15
well defined	15
characteristic fossils	15
just enter	15
animal forms	15
question whether	15
albertus magnus	15
remarkable form	15
recently discovered	15
permian revolution	15
three parts	15
canvas strake	15
nowhere else	15
gold mines	15
hoofed quadrupeds	15
earlier portion	15
latter genus	15
suction pumps	15
like creatures	15
soon afterward	15
later tertiary	15
hundred yards	15
coloured copper	15
form one	15
fossil reptiles	15
short strake	15
highest degree	15
ossemens fossiles	15
oldest rocks	15
two thousand	15
open plains	15
toward us	15
carried away	15
silurian age	15
animal matter	15
many palms	15
bony fishes	15
large islands	15
two extinct	15
may conclude	15
gave rise	15
chapter iii	15
one uncia	15
neotropical canada	15
less closely	15
two large	15
two beams	15
dana says	15
iron bars	15
pliocene formations	15
may possibly	15
reader may	15
first appears	15
almost certain	15
warm water	15
copper plates	15
whole area	15
recent geological	15
australian species	15
chapter ii	15
plummet level	14
will become	14
copper refining	14
mountain range	14
complete skeleton	14
old age	14
also living	14
tate sp	14
two sets	14
perim island	14
cold water	14
continental areas	14
vast amount	14
sinclairella dakotensis	14
great plains	14
mining clerk	14
vena cumulata	14
one centumpondium	14
large masses	14
geological ages	14
microscopic section	14
kansas publications	14
past geological	14
extensive genus	14
middle rafters	14
terrestrial mammalia	14
lower forms	14
old fellow	14
two forms	14
british isles	14
ancient authors	14
st century	14
little axle	14
mccoy sp	14
present knowledge	14
henry woodward	14
toothed birds	14
chapter xiii	14
good reason	14
raised beaches	14
two rows	14
chapter viii	14
marquesas islands	14
nicobar islands	14
never seen	14
nearly two	14
principal dawson	14
iron nails	14
hesperoherpeton garnettense	14
next chapter	14
hind legs	14
grassy plains	14
far removed	14
yet discovered	14
considerable extent	14
larger ones	14
charcoal dust	14
fore feet	14
bronze age	14
two new	14
drum made	14
much higher	14
bodies covered	14
numerous forms	14
mountain chains	14
anything like	14
sal artificiosus	14
cosmopolitan groups	14
four hours	14
large quantity	14
six species	14
animal remains	14
tabulate corals	14
oceanic islands	14
mesozoic era	14
almost always	14
straight line	14
two inches	14
per acre	14
magnesian limestones	14
general rule	14
southern part	14
calcareous plates	14
rudis silver	14
half wide	14
fort wallace	14
wild horses	14
certain amount	14
us now	14
fine specimens	14
middle tertiary	14
one portion	14
generally admitted	14
triassic rocks	14
garnettense peabody	14
purbeck beds	14
land plants	14
shallow seas	14
auckland islands	14
two islands	14
first mention	14
look like	14
higher groups	14
two iron	14
northern continent	14
many different	14
early part	14
rio negro	14
iron hook	14
brackish water	14
plate ii	14
late years	14
northern forms	14
ordovician graptolites	14
de animantibus	14
less abundant	14
among birds	14
quite certain	14
one set	14
solid rock	14
extreme north	14
digit long	14
silverized lead	14
first part	14
golden age	14
human mind	14
became extinct	14
temperate parts	14
marine reptiles	14
kansas lawrence	14
still remains	14
discontinuous distribution	14
headon hill	14
ever seen	13
chalk downs	13
sir richard	13
upper chalk	13
animals now	13
twenty miles	13
family types	13
seven genera	13
oriental families	13
must remember	13
lake superior	13
old israelites	13
great auk	13
much silver	13
fossil bones	13
carnivorous fishes	13
even though	13
migratory birds	13
geological epochs	13
many ways	13
lost creations	13
great length	13
quae effluunt	13
first cord	13
several peculiar	13
nummulitic limestone	13
distinct genera	13
volcanic action	13
remains found	13
now almost	13
whole reg	13
mixed together	13
tropical parts	13
book ix	13
metallic material	13
brick dust	13
ethiopian families	13
whatever may	13
cretaceous age	13
cold climate	13
creeping things	13
whilst others	13
arctic seas	13
burning charcoal	13
corniferous limestone	13
every year	13
fort sill	13
upper ends	13
eocene formation	13
short distance	13
miles long	13
third cord	13
restricted range	13
warm countries	13
hand figure	13
three distinct	13
northern half	13
already alluded	13
struthious birds	13
hind feet	13
neotropical genera	13
wingless birds	13
equal parts	13
whole earth	13
separate family	13
half long	13
northern seas	13
metallic particles	13
shallow sea	13
different parts	13
commonly called	13
nearly complete	13
inland seas	13
adjacent islands	13
floating ice	13
former existence	13
insect life	13
whole world	13
differ greatly	13
entire absence	13
left behind	13
washing ore	13
marine life	13
cretaceous series	13
years later	13
de vis	13
front end	13
lofty mountains	13
deep leads	13
spiritual nature	13
book iii	13
horizontal axle	13
usually found	13
front teeth	13
also possesses	13
one large	13
many animals	13
extremely abundant	13
laurentian period	13
fifty miles	13
now exist	13
external appearance	13
much longer	13
much later	13
silver glance	13
european genera	13
western states	13
fernando po	13
large extent	13
water deposits	13
new order	13
genera confined	13
polar regions	13
canvas strakes	13
second order	13
also made	13
left side	13
feet elevation	13
first chapter	13
african species	13
higher type	13
shallow waters	13
nearest ally	13
flying reptiles	13
nearly every	13
made known	13
american monkeys	13
digits high	13
may become	13
miocene flora	13
highly organised	13
larger number	13
yale college	13
representative species	13
existing birds	13
hundred species	13
red sandstones	13
recent changes	13
posterior end	13
species inhabiting	13
three groups	13
rocks may	13
another method	13
ex terra	13
formed part	13
fossil contents	13
ancestral forms	13
effluunt ex	13
almost exactly	13
part iv	13
western america	13
extinct monsters	13
feet three	13
cakes made	13
liquated lead	13
marine series	13
eorum quae	13
arctic zone	12
tertiary age	12
high mountains	12
next succeeding	12
now see	12
characteristic groups	12
iron tool	12
now exists	12
cakes melted	12
fifth day	12
necked sea	12
many naturalists	12
two furnaces	12
hugh miller	12
latin terms	12
medicinal purposes	12
yellow copper	12
altai mountains	12
cycloid scales	12
great forests	12
sometimes found	12
next stage	12
water may	12
great geological	12
following passage	12
important part	12
closely resemble	12
long duration	12
paris basin	12
organic origin	12
near geelong	12
great desert	12
northern continents	12
pacific coast	12
may refer	12
may look	12
commonly known	12
better known	12
larger species	12
greeks call	12
late tertiary	12
lower laurentian	12
existing distribution	12
special features	12
distinct genus	12
recently described	12
high peak	12
present purpose	12
argentum rude	12
mineral substances	12
first described	12
historic times	12
somewhat resembling	12
great development	12
eleven feet	12
well seen	12
muddy creek	12
chambered shells	12
already described	12
take one	12
trenton limestone	12
years since	12
testimonial evidence	12
miocene epoch	12
totally different	12
first side	12
greater antilles	12
doubt whether	12
warm seas	12
pleistocene mammals	12
entirely different	12
primary zoological	12
extinct birds	12
whole globe	12
new conditions	12
thrown away	12
present work	12
miocene plants	12
live coals	12
human beings	12
miles away	12
italics show	12
mine manager	12
will take	12
little iron	12
extinct types	12
minute particles	12
comparative anatomy	12
made use	12
essentially similar	12
vegetable food	12
modern types	12
every side	12
beds containing	12
southern parts	12
richard owen	12
conical teeth	12
old land	12
water containing	12
second set	12
less degree	12
two different	12
moderate size	12
now inhabiting	12
worn away	12
refined salt	12
whole number	12
geological series	12
remaining genera	12
historical notes	12
living birds	12
wider range	12
breeding season	12
may suppose	12
sifting ore	12
animantibus subterraneis	12
somewhat like	12
earlier part	12
table ii	12
great difficulty	12
occasionally found	12
ancient sea	12
next period	12
possesses peculiar	12
upper laurentian	12
one region	12
south yarra	12
great spirit	12
eocene times	12
irish elk	12
silver creek	12
eocene rocks	12
fierce fire	12
opposite side	12
another great	12
gold may	12
polynesian sub	12
highly probable	12
carefully studied	12
rectangular stones	12
partition wall	12
metalliferous material	12
roman weights	12
th centuries	12
hard rock	12
found among	12
natural causes	12
small launder	12
close together	12
forms now	12
characteristic species	12
peculiar fauna	12
small number	12
fossil world	12
just mentioned	12
internal structure	12
found nowhere	12
new edition	12
fossil condition	12
great mountain	12
remarkable group	12
permanent residents	12
iron pin	12
elephas primigenius	12
careful examination	12
edward forbes	12
living population	12
new land	12
three others	12
marine deposits	12
gold lump	12
fore part	12
whole country	12
gold dust	12
carnivorous animals	12
earlier period	12
genera occur	12
five toes	12
ancient rocks	12
ore channels	11
well characterised	11
little animal	11
fossil mammals	11
first known	11
stonesfield slate	11
intermediate forms	11
considered properly	11
extinct animal	11
plate iii	11
seven digits	11
william smith	11
transverse launder	11
first found	11
higher vertebrates	11
single family	11
cuprous oxide	11
past ages	11
general characters	11
silver nitrate	11
widely different	11
great change	11
triangular crucible	11
glass ampulla	11
inductive methods	11
eight inches	11
deciduous trees	11
rupert jones	11
niagara group	11
less numerous	11
important differences	11
jurassic series	11
earthen vessel	11
beds contain	11
great mesozoic	11
found associated	11
primeval man	11
fossil elephants	11
potsdam sandstone	11
ruby silver	11
plate xii	11
diodorus siculus	11
certain localities	11
part iii	11
may fairly	11
three days	11
east african	11
waurn ponds	11
also gives	11
good fortune	11
jigging sieve	11
wooden shovel	11
neolithic man	11
pliocene fauna	11
will reach	11
species may	11
northern parts	11
ten years	11
several extinct	11
also find	11
sulphuric acid	11
calcareous matter	11
coralline crag	11
yet know	11
second wall	11
first instance	11
first appear	11
distinct groups	11
much richer	11
aquatic life	11
even greater	11
marked feature	11
eastern continent	11
seven fathoms	11
von meyer	11
two equal	11
exactly like	11
must now	11
fragmentary remains	11
iron slag	11
roman times	11
british fossil	11
fort hays	11
tertiary epoch	11
great physical	11
round hole	11
fine mud	11
cretaceous strata	11
mineral matter	11
first method	11
ethiopian genus	11
raymond hall	11
miles north	11
toothed tiger	11
pacific ocean	11
lower amazon	11
direct evidence	11
wyville thomson	11
will describe	11
birds inhabiting	11
chapter xv	11
venae cumulatae	11
broken ore	11
similar age	11
following table	11
imperfect knowledge	11
liquation cake	11
silver ore	11
length feet	11
may flow	11
farther back	11
swept away	11
wild beasts	11
one method	11
almost identical	11
ancient forms	11
bivalve molluscs	11
order ii	11
chapter xiv	11
will doubtless	11
chalk period	11
seven inches	11
jackson shark	11
though still	11
nearly horizontal	11
vast areas	11
several groups	11
black stones	11
concluding remarks	11
geological formations	11
feet inches	11
complete skeletons	11
invertebrate animals	11
genial climate	11
washed away	11
museum catalogue	11
still greater	11
connecticut river	11
modern representatives	11
copper cakes	11
flying dragons	11
without great	11
larger size	11
small species	11
farther north	11
australian forms	11
us see	11
table cape	11
cubit wide	11
vast majority	11
level gravels	11
sir wyville	11
cainozoic beds	11
great river	11
many times	11
spread genera	11
high authorities	11
varied fauna	11
eastern himalayas	11
northern china	11
devonian strata	11
twenty years	11
smelting ores	11
caspian sea	11
east side	11
fossil plants	11
fossiliferous deposits	11
native silver	11
will therefore	11
marine fish	11
fossils may	11
half thick	11
animals may	11
one branch	11
small wooden	11
chalk strata	11
general observations	11
zoological geography	11
two unciae	11
two formations	11
one family	11
southern india	11
established fact	11
open sea	11
southern asia	11
frozen soil	11
will give	11
plate iv	11
great masses	11
first description	11
kimmeridge clay	11
third part	11
long walls	11
yet found	11
last three	11
generally speaking	11
large bird	11
nearly half	11
malayan genera	10
european birds	10
base metals	10
silurian series	10
notochordal canal	10
marine strata	10
peculiar groups	10
ancient types	10
many important	10
forms belonging	10
high antiquity	10
several feet	10
physical evidence	10
tetrabranchiate cephalopods	10
become modified	10
eighty feet	10
occurs also	10
rock seams	10
many miles	10
river district	10
great expense	10
celled animals	10
may remark	10
remote epoch	10
frequently found	10
melted pyrites	10
carboniferous plants	10
last chapter	10
immediate vicinity	10
plate xvi	10
baron cuvier	10
hardly less	10
persian gulf	10
lower devonian	10
great oolite	10
two portions	10
professor carus	10
often contain	10
comoro islands	10
early forms	10
small island	10
giant birds	10
various geological	10
neotropical forms	10
living genera	10
southern hemispheres	10
striking contrast	10
inferior oolite	10
looked like	10
comparatively short	10
nearly species	10
numerous extinct	10
mesozoic time	10
malayan genus	10
laid bare	10
parting precious	10
species belong	10
already discussed	10
devonian deposits	10
last part	10
second part	10
ore deposits	10
flinders river	10
horny sheath	10
important families	10
copper moulds	10
cutting teeth	10
different groups	10
generalised section	10
region oriental	10
wholly absent	10
gold ores	10
west america	10
left us	10
two long	10
entirely new	10
seventh transverse	10
feet two	10
square fathoms	10
iron hoop	10
fifty years	10
two ways	10
silurian brachiopods	10
parent form	10
zealand fauna	10
fossiliferous strata	10
iron filings	10
american families	10
draw water	10
european sub	10
living nature	10
may rest	10
arctic climate	10
amherst college	10
early mammals	10
geological age	10
anterior part	10
quite unknown	10
farther south	10
quebec group	10
various times	10
different ways	10
iron bands	10
great difference	10
recently extinct	10
living thing	10
extreme northern	10
historical period	10
noachian deluge	10
special conditions	10
wholly neotropical	10
northern range	10
ancestral type	10
existing animals	10
holds good	10
ten inches	10
two centuries	10
species extending	10
latter case	10
gigantic dimensions	10
god created	10
great quantities	10
fossil wood	10
considerable thickness	10
major triangle	10
superficial deposits	10
lead ores	10
cosmic dust	10
plumbum candidum	10
bracklesham beds	10
historic period	10
lower helderberg	10
great equatorial	10
well shown	10
upper pots	10
gentle fire	10
fossil impressions	10
later age	10
lower bellows	10
lower beds	10
also note	10
cambrian trilobites	10
upright axle	10
american museum	10
upper missouri	10
say whether	10
avicula contorta	10
pleistocene deposits	10
passerine birds	10
eight hundred	10
almost peculiar	10
great beds	10
presents us	10
articulate animals	10
several times	10
copper flowers	10
mesozoic rocks	10
atramentum sutorium	10
nearctic genus	10
smaller size	10
may consist	10
larger islands	10
fluviatile deposits	10
geological times	10
may still	10
oolitic insect	10
plate xvii	10
many hundreds	10
eighteenth century	10
straight lines	10
old story	10
bos primigenius	10
yet another	10
first appeared	10
early days	10
mining prefect	10
great zoological	10
tabular view	10
fossil fishes	10
heavenly bodies	10
much importance	10
temperate genus	10
plate ix	10
los angeles	10
wise woman	10
zoological relations	10
old river	10
central mass	10
must first	10
simple buddle	10
miocene beds	10
outlying species	10
see copper	10
silurian seas	10
set forth	10
devonian age	10
pterygotus anglicus	10
see plate	10
strongly marked	10
special study	10
freshwater shells	10
tropical forests	10
spring water	10
three librae	10
miles east	10
carboniferous strata	10
running water	10
flint gravel	10
geological evidence	10
four siliquae	10
head meer	10
upright timber	10
water carries	10
plate xiii	10
present distribution	10
crystalline rocks	10
miles west	10
generally known	10
new brunswick	10
dates back	10
fact number	10
lower lias	10
barton clay	10
two hours	10
stratified deposits	10
caldarium copper	10
bivalve shell	10
timor group	10
abundantly represented	10
found abundantly	10
ecuador brazil	10
one mine	10
different forms	10
three years	10
early stage	10
incisor teeth	10
contains one	10
may consider	10
elongate bodies	10
now forming	10
irish deer	10
mosaic writer	10
changes may	10
much interest	10
five genera	10
neotropical families	10
long intervals	10
nearctic genera	10
highly specialized	10
land snails	10
plate xix	10
entire skeleton	10
will suffice	10
geographical range	10
far east	10
igneous rocks	10
first printed	10
throughout life	10
four families	10
abundant remains	10
will consider	10
one spot	10
plate xv	10
often spoken	10
white cliffs	10
interesting fact	10
chronological order	10
several others	10
long continued	10
foot deep	10
boundary mark	10
sea shells	10
contain many	10
red rocks	10
much older	10
melted salt	10
far distant	10
four hundred	10
first volume	10
making nitric	10
striking examples	10
european secondary	10
much labour	10
peculiar birds	10
affecting distribution	10
large rivers	10
half centumpondia	10
small group	10
first book	10
english chalk	10
first set	10
dibranchiate cephalopods	10
higher mammals	10
generally used	10
upper nile	10
miles wide	10
constitute one	10
third kind	10
vast extent	10
rock salt	10
internal heat	10
considerable proportion	10
either wholly	10
interesting forms	10
hundred times	10
somewhat later	10
last one	10
many men	10
south india	10
flying squirrels	10
chapter xvi	10
general principles	10
now well	10
many thousands	10
also used	9
great depth	9
interpretatio gives	9
single region	9
considerable portion	9
new type	9
homestead act	9
several distinct	9
specially adapted	9
thousand square	9
yellow chalk	9
great west	9
important fact	9
placed underneath	9
bring forth	9
last genus	9
cold regions	9
brass making	9
common occurrence	9
least one	9
dissolved away	9
elapsed since	9
last family	9
two former	9
half unciae	9
shaft will	9
judge lynch	9
solid crust	9
first half	9
opinion among	9
known genera	9
temperate forms	9
dorsal fins	9
surrounding conditions	9
general appearance	9
extensive area	9
sea bottom	9
largely represented	9
near fort	9
south russia	9
geographical changes	9
among lizards	9
erect position	9
draws water	9
six hundred	9
sur les	9
sea water	9
tammany sachem	9
columbia river	9
strata containing	9
roman empire	9
pointed teeth	9
region ethiopian	9
various classes	9
upper jurassic	9
dinornis maximus	9
intervening ages	9
precisely similar	9
lower surface	9
aqua regia	9
great distances	9
vertebrate life	9
silurian deposits	9
direct line	9
australian families	9
nearctic families	9
forest country	9
gave us	9
fossils occur	9
fused together	9
chiefly found	9
seven species	9
deposits formed	9
may lead	9
proper place	9
australian rocks	9
primitive types	9
remain stationary	9
beautifully preserved	9
one exception	9
cadmia metallica	9
miles south	9
centuries ago	9
different genera	9
one single	9
preserved specimens	9
royal college	9
fifteen years	9
upper millstone	9
ancient world	9
man lived	9
sula islands	9
near yass	9
entirely absent	9
year round	9
may often	9
andaman islands	9
scientific world	9
already given	9
comes next	9
ages ago	9
certain groups	9
considerable numbers	9
seventy feet	9
historical truth	9
elephas antiquus	9
equally well	9
nearest living	9
north platte	9
now submerged	9
either case	9
will serve	9
may make	9
usually placed	9
port phillip	9
early permian	9
southern lands	9
palm high	9
two centumpondia	9
millstone grit	9
many fossils	9
small scales	9
every respect	9
one locality	9
important facts	9
may call	9
curious little	9
connecting link	9
probably due	9
original copper	9
copper ores	9
share clerk	9
american miocene	9
half inches	9
silver alloy	9
family ii	9
also two	9
tropical asia	9
scaly bodies	9
little importance	9
species ranging	9
eocene beds	9
clinton group	9
species allied	9
former times	9
extinct family	9
varied types	9
whole ethiopian	9
recent discovery	9
tolerably abundant	9
sometimes called	9
neotropical genus	9
refining furnace	9
extensive series	9
sir john	9
vast area	9
lower palaeozoic	9
north wales	9
contains two	9
soft parts	9
sir roderick	9
glowing coals	9
one type	9
australian types	9
dry wood	9
plate vii	9
different types	9
contains many	9
african genus	9
strange forms	9
grange burn	9
principal forms	9
early date	9
flat spiral	9
organic body	9
now considered	9
archaean rocks	9
transverse beams	9
upper division	9
time since	9
run away	9
great extinct	9
insectivorous birds	9
microscopic structure	9
since described	9
surrounding country	9
cincinnati group	9
except perhaps	9
water lakes	9
sir henry	9
many kinds	9
may even	9
may occur	9
perhaps even	9
fourfold order	9
since one	9
lower portion	9
higher land	9
lead may	9
generalized section	9
southern continents	9
often happens	9
learned men	9
great amount	9
new stone	9
terrestrial life	9
modern horse	9
third transverse	9
frequent occurrence	9
second day	9
ancient river	9
central american	9
ancestral form	9
little windows	9
class ii	9
latter country	9
genera common	9
next comes	9
especially interesting	9
mount gambier	9
dried lees	9
like creature	9
sandstone rocks	9
leads us	9
human history	9
roderick murchison	9
wild bill	9
certain number	9
neural arch	9
second species	9
heated together	9
port jackson	9
southern limit	9
probable past	9
one way	9
moore sp	9
positive evidence	9
southern portion	9
dollars per	9
species common	9
forms belong	9
brazilian sub	9
aqueous rocks	9
soft mud	9
generally accepted	9
find many	9
plate vi	9
tertiary mammals	9
jurassic age	9
will appear	9
typically developed	9
forty years	9
equal sides	9
calcareous rocks	9
long tails	9
inland sea	9
hind foot	9
solidified juice	9
internal cingulum	9
since man	9
numerous genera	9
tropical climate	9
three pairs	9
following list	9
brought forth	9
immense number	9
captain cautley	9
greatly enlarged	9
many interesting	9
tropical countries	9
may hill	9
generally found	9
five inches	9
upright post	9
mountain limestone	9
first three	9
hind limb	9
separates gold	9
diprotodon australis	9
fine species	9
still existing	9
known forms	9
cochin china	9
formed rocks	9
original condition	9
former case	9
microscopic shells	9
marine organisms	9
great marine	9
will continue	9
iron mould	9
six months	9
powerful tail	9
may assume	9
bembridge limestone	9
may fall	9
somewhat less	9
persistent types	9
smaller islands	9
latter may	9
america neotropical	9
red hot	9
important group	9
supposed land	9
fire consumes	9
least three	9
oxford clay	9
better adapted	9
lower pots	9
large area	9
great continent	9
upper palaeozoic	9
main land	9
sea urchins	9
furnace bottoms	9
plate viii	9
toothed rake	9
american groups	9
right angle	9
already noticed	9