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
astronomer royal	155
royal society	153
royal observatory	133
solar system	125
sir john	100
june th	100
miss mitchell	95
sir william	90
john herschel	79
double stars	78
may th	75
william herschel	73
new york	72
lunar theory	72
years ago	68
july th	67
dear sir	62
years old	61
trinity college	61
united states	61
astronomical society	61
nautical almanac	60
greenwich observatory	59
years later	59
tycho brahe	57
many years	57
le verrier	55
fixed stars	54
great deal	52
cambridge observatory	52
royal astronomical	51
foot telescope	50
june report	49
good deal	48
private history	47
sir george	44
one day	44
heavenly bodies	44
transit circle	43
three years	43
good hope	42
first time	42
last night	41
two years	40
well known	40
egyptian cat	38
august th	37
old man	37
every day	36
let us	35
four hours	35
observations made	35
professor henry	35
mr peacock	34
five years	34
british association	34
lord rosse	34
long time	34
young man	34
great work	33
astronomical observations	33
brother william	32
milky way	32
de la	32
two hundred	31
every one	31
thousand years	31
following letter	31
civil war	31
philosophical society	31
numerical lunar	30
new planet	30
hundred years	30
one hundred	30
four years	30
celestial sphere	29
present day	29
twenty years	29
present time	28
solar eclipse	28
one side	28
several times	28
next day	28
short time	27
several years	27
six years	26
took place	26
great interest	26
rick thought	25
now known	25
philosophical transactions	25
ali moustafa	25
naval observatory	25
isaac newton	25
straight line	24
see also	24
one time	24
set forth	24
transit instrument	24
scientific work	24
scientific men	23
sir isaac	23
new star	23
great telescope	23
naked eye	23
long ago	23
rick looked	23
george airy	23
three days	23
miss herschel	23
paris observatory	23
much time	22
coast survey	22
rick asked	22
caroline herschel	22
george biddell	22
revolve round	21
great astronomer	21
mural circle	21
centrifugal force	21
one thing	21
pure mathematics	21
total eclipse	21
report states	21
astronomical work	20
copernican theory	20
smithsonian institution	20
ten years	20
first lord	20
printed papers	20
scotty asked	20
later years	20
kemel moustafa	20
next year	20
old friend	20
will see	20
first magnitude	19
two men	19
vassar college	19
now know	19
white light	19
much pleased	19
much correspondence	19
young men	19
arthur biddell	19
one point	19
third law	19
two stars	19
seven years	19
iron ships	19
reflecting telescope	19
southern hemisphere	18
one star	18
one occasion	18
national academy	18
one another	18
professor peirce	18
fifty years	18
even now	18
one way	18
celestial bodies	18
astronomical instruments	18
march th	18
new england	17
lady herschel	17
small planets	17
revolving round	17
will show	17
latter part	17
three times	17
maria mitchell	17
differential equations	17
white house	17
take place	17
inverse square	17
thirty years	17
periodic time	17
one evening	16
object glass	16
ptolemaic system	16
almanac office	16
differential calculus	16
great men	16
far away	16
professor schumacher	16
ever saw	16
near keswick	16
nothing else	16
three months	16
cambridge philosophical	16
one end	16
sahara wells	16
el mouski	16
young lady	16
every year	15
early years	15
alvan clark	15
scientific world	15
full moon	15
never saw	15
much interest	15
sir james	15
long enough	15
mr sheepshanks	15
far beyond	15
plumian professor	15
several days	15
national observatory	15
one great	15
edward everett	15
much like	15
admiral smyth	15
will come	15
six months	15
last year	15
july rd	14
georgium sidus	14
great number	14
little boy	14
many things	14
will never	14
october term	14
nebular hypothesis	14
came home	14
two hours	14
gold medal	14
professor airy	14
lunar reductions	14
copernican system	14
much attention	14
lake district	14
three hours	14
proper motion	14
central body	14
two bodies	14
first sight	14
made many	14
may seem	14
geological survey	14
regular solids	14
five hundred	14
forty years	14
something like	13
much less	13
senior wrangler	13
will take	13
feet high	13
william watson	13
magnifying power	13
great circle	13
fifteen years	13
large number	13
see whether	13
great man	13
encyclopaedia metropolitana	13
astronomical observatory	13
miss sheepshanks	13
miles away	13
faithful servant	13
proper motions	13
three hundred	13
will give	13
biddell airy	13
great many	13
greenwich observations	13
one else	13
mathematical astronomy	13
lunar acceleration	13
old age	13
never heard	13
physical astronomy	13
de morgan	13
five days	13
great discoveries	13
lick observatory	13
next morning	13
almost every	13
foot reflector	13
many others	13
will find	13
radiant heat	13
eight years	12
fuad moustafa	12
scientific man	12
much pleasure	12
went back	12
october th	12
new world	12
looked like	12
twenty feet	12
one planet	12
mr hustler	12
lord auckland	12
young woman	12
sister maria	12
ever lived	12
spring rice	12
shall see	12
different parts	12
magnetic observations	12
magnetic observatory	12
son hubert	12
million years	12
first place	12
right angles	12
six hours	12
octagon chapel	12
early life	12
per annum	12
senate house	12
four days	12
pretty well	12
moon must	12
come back	12
long vacation	12
far greater	12
never seen	12
will get	12
practical astronomy	12
every second	12
short visit	12
following extract	12
radius vector	12
new system	12
great new	12
rick saw	11
dr young	11
centuries ago	11
letter written	11
eastern railway	11
anything else	11
first day	11
father secchi	11
early days	11
every part	11
ever since	11
circular motion	11
de knuth	11
mrs airy	11
lunar tables	11
large part	11
looked around	11
soon became	11
george iii	11
long period	11
must necessarily	11
following paragraph	11
telescopic comet	11
two miles	11
one may	11
us now	11
like many	11
obedient servant	11
twelve hours	11
meteorological observations	11
many hours	11
young astronomer	11
shook hands	11
due time	11
lunar tide	11
will probably	11
even though	11
second law	11
year airy	11
may say	11
two satellites	11
astronomische nachrichten	11
great telescopes	11
first class	11
much larger	11
one night	11
right ascension	11
otto struve	11
physical science	11
planet saturn	11
terrestrial magnetism	11
maria celeste	11
question whether	10
small telescope	10
individual members	10
eldest son	10
taken place	10
ancient eclipses	10
may well	10
whole world	10
thousand times	10
three weeks	10
one might	10
rudolphine tables	10
stars near	10
octagon room	10
two months	10
must remember	10
following extracts	10
de vico	10
feet long	10
large telescope	10
undulatory theory	10
ever seen	10
september th	10
one focus	10
zenith tube	10
first assistant	10
american association	10
great pleasure	10
june nd	10
votre excellence	10
among us	10
mr herschel	10
neap tides	10
scotty agreed	10
control room	10
lord john	10
hundred miles	10
ever made	10
well enough	10
professor challis	10
solar tide	10
took charge	10
partial differential	10
liverpool observatory	10
mr baily	10
important part	10
one direction	10
professor adams	10
little girl	10
etats unis	10
grand duke	10
also made	10
southern heavens	10
passed away	10
various parts	10
planets move	10
will make	10
last two	10
great difficulty	10
th mr	10
botanic system	10
tells us	10
soon found	10
million miles	10
good english	10
every way	10
november meteors	10
two thousand	10
every kind	10
show us	10
admiral davis	10
years past	10
straight lines	10
present century	10
double star	10
large enough	10
much work	10
sir robert	10
great part	10
days later	10
post office	10
mr pond	10
great philosopher	10
may st	10
directed towards	10
ten thousand	10
whole subject	9
brought together	9
great care	9
following passage	9
mr glaisher	9
well remember	9
left behind	9
lucasian professor	9
chapter iv	9
northumberland telescope	9
young people	9
totally different	9
equable description	9
two days	9
whole life	9
little time	9
early age	9
harriet hosmer	9
herschel discovered	9
irish academy	9
foot mirror	9
cambridge university	9
equal times	9
spring tides	9
square root	9
five hours	9
might make	9
great advantage	9
early part	9
much interested	9
small star	9
planetary system	9
great britain	9
chapter ii	9
american students	9
newtonian telescope	9
human intellect	9
already mentioned	9
revolved around	9
john russell	9
inches aperture	9
came back	9
scientific subjects	9
ben adhem	9
th part	9
almost entirely	9
lucasian professorship	9
main work	9
know whether	9
mr clarkson	9
careful study	9
barrow house	9
well acquainted	9
much trouble	9
chapter iii	9
scientific matters	9
line joining	9
force acting	9
monthly notices	9
must know	9
focal length	9
suspension bridge	9
eighteen years	9
first year	9
good many	9
april th	9
great extent	9
harvard observatory	9
main features	9
natural philosophy	9
mr wood	9
house examination	9
knew nothing	9
now call	9
years since	9
per cent	9
navy department	9
quite sure	9
modern astronomy	9
greenwich park	9
human race	9
bright star	9
miss southey	9
high tide	9
sister caroline	9
long afterwards	9
first meeting	9
radio telescope	9
sixty years	9
herschel found	9
count de	9
planetary motion	9
ten times	9
took much	9
apparent motion	9
mr simms	9
might almost	9
also wrote	9
pulkova observatory	9
planetary reductions	9
six feet	9
ismail ben	9
south eastern	9
time signals	9
give us	9
orbit round	8
great planet	8
foreign affairs	8
appropriation bill	8
third brother	8
mathematical tracts	8
ten days	8
seventeenth century	8
well observed	8
great equatoreal	8
harvard college	8
political economy	8
twelve years	8
mathematical monthly	8
new moon	8
make one	8
modern science	8
mr spring	8
every twenty	8
high tides	8
des sciences	8
mr whewell	8
great satisfaction	8
professor cayley	8
best known	8
william airy	8
put together	8
herschel wrote	8
quite different	8
doubt whether	8
thomas clarkson	8
anything like	8
new method	8
four times	8
look like	8
astronomische gesellschaft	8
young ladies	8
hebrew scriptures	8
large extent	8
doubtful whether	8
copernican doctrine	8
second order	8
like one	8
first satellite	8
royal irish	8
william thomson	8
rick brant	8
young girl	8
force acts	8
astronomical observation	8
rick pointed	8
atlantic cable	8
private pupils	8
already seen	8
hopkins university	8
active part	8
start point	8
small stars	8
now began	8
square law	8
right away	8
afterwards sir	8
scientific friends	8
suffered much	8
mr stone	8
miscellaneous matters	8
father de	8
five miles	8
good time	8
elliptic orbit	8
cape observatory	8
open air	8
took great	8
close together	8
two centuries	8
egyptian museum	8
scientific research	8
much greater	8
made known	8
great majority	8
three bodies	8
weeks later	8
relative positions	8
attractive power	8
variable stars	8
des etats	8
every thirty	8
mr charles	8
annual reports	8
mr smith	8
go back	8
stellar parallax	8
celestial mechanics	8
earth must	8
scientific investigation	8
may now	8
four hundred	8
made several	8
cape town	8
herschel house	8
celestial globe	8
lunar surface	8
lunar observations	8
planetary observations	8
th october	8
future astronomer	8
johns hopkins	8
nineteenth century	8
galvanic currents	8
san francisco	8
common centre	8
th january	8
already made	8
james south	8
greatest interest	8
little man	8
many times	8
first step	8
hours long	8
around one	7
sten gun	7
many days	7
harton colliery	7
leonardo da	7
gave way	7
social life	7
must therefore	7
past ages	7
highest degree	7
must now	7
two different	7
hundred feet	7
magnifying powers	7
may possibly	7
still continued	7
rick agreed	7
absolutely necessary	7
three million	7
per second	7
railway gauge	7
tay bridge	7
conical motion	7
now just	7
man whose	7
magnitude stars	7
nineteen miles	7
left alone	7
making observations	7
mean motion	7
gauge commission	7
new stars	7
physical subjects	7
washington telescope	7
papers relating	7
eldest sons	7
planetary orbits	7
physical constitution	7
whole affair	7
big man	7
will therefore	7
will now	7
one body	7
almost say	7
mathematical subjects	7
diurnal motion	7
dear father	7
several papers	7
planets round	7
look around	7
public concerts	7
might well	7
galvanic communication	7
say nothing	7
new transit	7
war department	7
another occasion	7
opposite side	7
exact astronomy	7
apparent movements	7
stars may	7
opposite direction	7
little town	7
take care	7
lately discovered	7
careful examination	7
least one	7
six miles	7
february th	7
revolving around	7
long since	7
far advanced	7
american academy	7
seven hundred	7
two points	7
first letter	7
two planets	7
long years	7
revolves round	7
great pyramid	7
among others	7
every detail	7
completely accounted	7
every possible	7
year following	7
de votre	7
seven miles	7
litchfield observatory	7
mathematical investigations	7
much engaged	7
carolina herschel	7
king george	7
last time	7
miss pinckney	7
must come	7
new ones	7
mutual attractions	7
two great	7
north pole	7
early history	7
present distance	7
know now	7
unaided eye	7
mean distance	7
great discovery	7
hundred thousand	7
much longer	7
long inequality	7
present state	7
made observations	7
november th	7
many cases	7
afterward became	7
carried round	7
seventy years	7
may nd	7
took care	7
decimal coinage	7
rick turned	7
th satellite	7
five regular	7
certain extent	7
mecanique celeste	7
three feet	7
took part	7
birr castle	7
every minute	7
next step	7
greater part	7
generally supposed	7
refracting telescope	7
two seconds	7
holy orders	7
will seem	7
must pass	7
conic sections	7
right one	7
one morning	7
vernon harcourt	7
th february	7
takes place	7
nearly two	7
northern hemisphere	7
clay hall	7
centripetal force	7
subsequent years	7
one whose	7
british museum	7
et seq	7
newton calculated	7
university library	7
know nothing	7
one object	7
two lines	7
extremely well	7
equal areas	7
new instrument	7
time afterwards	7
equatorial telescope	7
june rd	7
sixteen years	7
work done	7
sanborn tracings	7
dudley observatory	7
holy office	7
every moment	7
without much	7
astronomical journal	7
george arthur	7
first great	7
may see	7
see harbours	7
whose life	7
nearly every	7
lords commissioners	7
became evident	7
one knows	7
however much	7
whole system	7
professor mitchell	7
much better	7
one hour	7
little way	7
six planets	7
professor sedgwick	6
two daughters	6
first thing	6
lower part	6
matters connected	6
first attempt	6
near enough	6
annular eclipse	6
fundamental stars	6
many men	6
british government	6
outer planet	6
laid aside	6
sir henry	6
highest order	6
son osmund	6
seventeen years	6
rowan hamilton	6
nearly circular	6
curve described	6
within sight	6
little book	6
long way	6
large telescopes	6
many people	6
new edition	6
return home	6
walked toward	6
generally speaking	6
five thousand	6
scotty replied	6
recent times	6
will say	6
six centuries	6
may find	6
years hence	6
many thousands	6
sheepshanks fund	6
stars will	6
must go	6
four feet	6
now made	6
one man	6
given us	6
stood beside	6
like manner	6
one case	6
first part	6
one person	6
interesting account	6
professor hall	6
whole time	6
fixed star	6
times farther	6
preceding year	6
frederick william	6
first law	6
periodic times	6
whose name	6
caius college	6
faithful sister	6
always ready	6
six weeks	6
simon newcomb	6
various places	6
solar parallax	6
astronomical research	6
best way	6
solar spots	6
honorary degree	6
moving towards	6
continuous change	6
rick knew	6
rick grinned	6
private life	6
th june	6
playford churchyard	6
south africa	6
european tour	6
certain stars	6
one knew	6
british isles	6
take part	6
per day	6
will appear	6
another planet	6
entirely unknown	6
united arab	6
whirled round	6
now seems	6
second prism	6
quite clear	6
different kind	6
astronomical science	6
great kindness	6
mean temperature	6
last years	6
one place	6
de vous	6
great delight	6
falling bodies	6
following year	6
galileo galilei	6
first brought	6
john kepler	6
correspondence relating	6
solar disturbance	6
parish church	6
another time	6
th march	6
miles every	6
sixth magnitude	6
five times	6
difficult problem	6
tidal wave	6
senior sophs	6
first book	6
brought back	6
hakim farid	6
planetary tables	6
true nature	6
routine work	6
le monnier	6
diurnal rotation	6
appointed time	6
inch telescope	6
another room	6
bad weather	6
university press	6
one thought	6
smaller ones	6
outer planets	6
fifty miles	6
one year	6
le roi	6
planet mars	6
high water	6
one month	6
one thousand	6
earth describes	6
large family	6
near windsor	6
hassan drove	6
st petersburg	6
advanced age	6
celestial objects	6
ever heard	6
one part	6
whole number	6
make known	6
human knowledge	6
mena house	6
received notice	6
annual equation	6
various ways	6
galvanic signals	6
will continue	6
equally well	6
will remain	6
revolves around	6
pulkowa observatory	6
letters written	6
john stuart	6
modern days	6
great importance	6
shortly afterwards	6
analytical geometry	6
two minutes	6
chesil bank	6
felt like	6
nine years	6
brought home	6
quite ready	6
far superior	6
small circle	6
nineteen years	6
et la	6
magnetic disturbances	6
astronomical researches	6
stars visible	6
son wilfrid	6
take us	6
professor bond	6
never made	6
little children	6
revolved round	6
horizontal motion	6
planet must	6
roger bacon	6
que vous	6
miss lulu	6
daughter christabel	6
great nebula	6
might otherwise	6
extreme care	6
westminster clock	6
told us	6
angular distance	6
three terms	6
herschel says	6
became necessary	6
great planets	6
force directed	6
setting forth	6
always regarded	6
penetrating power	6
look back	6
clark sons	6
last century	6
varies inversely	6
eight times	6
comparative brightness	6
looks like	6
whole matter	6
one half	6
magnetic ground	6
william mitchell	6
solar spectrum	6
chapter vii	6
college hall	6
century ago	6
instrumental equipment	6
every particle	6
great mirror	6
plumian professorship	6
every star	6
isaac herschel	6
found time	6
one reason	6
time came	6
lecture iii	6
mathematical work	6
de sa	6
greatly interested	6
two eldest	6
celestial movements	6
july st	6
attractive force	6
looking back	6
light must	6
open ocean	6
certain day	6
next week	6
gave evidence	6
earth moved	6
due course	6
arab republic	6
last days	6
hours together	6
critical examination	6
every hour	6
tell us	6
high order	6
practical astronomer	6
small one	6
first stage	6
heavenly body	6
meridional instruments	6
harvard university	6
much easier	6
another man	6
carefully preserved	6
mr lubbock	5
eldest daughter	5
foreign countries	5
earth might	5
danish minister	5
see fig	5
parallel lines	5
ever known	5
two sons	5
planet neptune	5
cambridge observations	5
will send	5
miss bremer	5
particular star	5
rick took	5
magnifying glass	5
general character	5
sir joseph	5
must tell	5
mr de	5
two papers	5
good work	5
time required	5
following terms	5
second time	5
discovered two	5
hundred times	5
became known	5
first european	5
obituary notice	5
chapter ix	5
sixty miles	5
may rd	5
hundred guineas	5
time now	5
high magnifying	5
chief clerk	5
richarda smith	5
little doubt	5
long life	5
mathematical investigation	5
lent term	5
give great	5
seven feet	5
men whose	5
skeleton forms	5
miss maria	5
local time	5
greatly extended	5
beg leave	5
conic section	5
whose light	5
much money	5
benjamin peirce	5
gets pulled	5
thousand leagues	5
must also	5
turn round	5
star catalogue	5
public school	5
scotty took	5
eight miles	5
continued till	5
scarcely ever	5
bright enough	5
must ever	5
two astronomers	5
without giving	5
nearly completed	5
vous avez	5
philosophical subjects	5
next evening	5
one second	5
real motion	5
minor planets	5
observed facts	5
winter holiday	5
true direction	5
university education	5
three different	5
junior sophs	5
scientific history	5
among men	5
best fitted	5
almost without	5
herschel gave	5
quite recently	5
simple process	5
plumb line	5
time ball	5
modern times	5
never knew	5
variable star	5
gave great	5
image micrometer	5
last letter	5
civil engineers	5
principal stars	5
philosophical magazine	5
lord lyndhurst	5
last report	5
portinscale near	5
five minutes	5
pretty good	5
personal equation	5
different points	5
unknown planet	5
remarkable phenomenon	5
disturbing cause	5
st stanislas	5
great measure	5
de ce	5
leading men	5
thorough search	5
imperial observatory	5
always remembered	5
without success	5
force emanating	5
general sabine	5
everything else	5
one room	5
circle round	5
apparent direction	5
first object	5
favourite subjects	5
different way	5
nothing less	5
rick wondered	5
quite possible	5
last ten	5
christopher wren	5
two others	5
usual visit	5
december th	5
scientific writings	5
central forces	5
examination paper	5
oceanic humps	5
scientific pursuits	5
westminster palace	5
given place	5
later life	5
mr hind	5
rick moved	5
leading astronomers	5
instrumental means	5
scientific club	5
keen interest	5
ten feet	5
admiral sands	5
georgian planet	5
small part	5
mr ellis	5
every week	5
relative distances	5
lord monteagle	5
former pupil	5
may fairly	5
railway company	5
one revolution	5
nebulous stars	5
astronomical labours	5
first importance	5
dear miss	5
two later	5
hard work	5
great scientific	5
great distance	5
daughter annot	5
different distances	5
de revolutionibus	5
earth revolved	5
great astronomical	5
zenith sector	5
greatly increased	5
chapter vi	5
near ipswich	5
telegraph wires	5
well seen	5
english steamer	5
mathematical study	5
dear master	5
now well	5
almost always	5
since elapsed	5
also studied	5
light transmitted	5
small bodies	5
low water	5
greatest master	5
denuding agent	5
airy wrote	5
urban viii	5
mathematical science	5
annual visitation	5
began lectures	5
planetary perturbation	5
great magician	5
last paper	5
telescopic power	5
never failed	5
several planets	5
best part	5
never see	5
must revolve	5
great respect	5
many persons	5
penny cyclopaedia	5
interesting feature	5
last winter	5
every object	5
two sides	5
great mathematician	5
devoted much	5
last quarter	5
astronomical investigation	5
long letter	5
near us	5
first half	5
moon will	5
enormously greater	5
blue eyes	5
reflex zenith	5
fifty feet	5
reflecting telescopes	5
refracting telescopes	5
larger one	5
large masses	5
every time	5
go away	5
pendulum experiments	5
still held	5
already referred	5
copley medal	5
may also	5
smaller one	5
now one	5
little later	5
many ways	5
various kinds	5
probable error	5
still living	5
present year	5
julius caesar	5
la science	5
resisting medium	5
great observer	5
hope observatory	5
da vinci	5
examination papers	5
whole solar	5
nearly half	5
catalogue case	5
let fall	5
printed observations	5
sir christopher	5
cavendish experiment	5
first discovered	5
third book	5
every subject	5
last word	5
professor holden	5
dated th	5
four miles	5
young mathematician	5
every point	5
woman suffrage	5
captain gilliss	5
another great	5
slow movement	5
danish government	5
nearly equal	5
way home	5
alpha herculis	5
robert peel	5
second edition	5
black eyes	5
astronomical discoveries	5
almost impossible	5
earth currents	5
last meeting	5
celestial phenomena	5
future time	5
brother alex	5
one instant	5
due consideration	5
moon may	5
made enquiries	5
july nd	5
tidal action	5
real one	5
almost unknown	5
work may	5
twelve seconds	5
bright stars	5
will always	5
great weight	5
intimate friend	5
halley found	5
pounds per	5
must leave	5
make observations	5
true law	5
stuart mill	5
large scale	5
four men	5
great problem	5
pole star	5
among astronomers	5
system must	5
january th	5
proper time	5
years previously	5
old friends	5
without saying	5
mrs smith	5
strong character	5
know something	5
long afterward	5
astronomical knowledge	5
past ten	5
continuous work	5
revolution around	5
young galileo	5
various points	5
careful attention	5
enables us	5
early education	5
eyes met	5
remarkable discoveries	5
great amount	5
high rank	5
time occupied	5
william rowan	5
planet uranus	5
average distance	5
first visit	5
fixed centre	5
forth bridge	5
may add	5
first proposal	5
see planets	5
middle ages	5
different seasons	5
english channel	5
great mass	5
meridian instrument	5
every turn	5
bodies must	5
westminster abbey	5
now called	5
mean time	5
determine whether	5
chapter xi	5
achromatic eye	5
good old	5
mr gladstone	5
immortal work	5
throughout europe	5
twenty times	5
chapter viii	5
general sherman	5
de medici	5
became astronomer	5
central force	5
green bank	5
paper entitled	5
now almost	5
total solar	5
american girl	5
personal character	5
distant objects	5
royal commission	5
new doctrines	5
good fortune	5
extremely difficult	5
exceedingly small	5
four satellites	5
public affairs	5
great comet	5
natural science	5
miss dix	5
became one	5
report continues	5
soon afterward	5
nine miles	5
mutual perturbations	5
set aside	5
every branch	5
first trip	5
one foot	5
professor joseph	5
chance co	5
spherical aberration	5
great exhibition	5
question arose	5
planetary motions	5
speculum metal	5
around us	5
greenwich meridian	5
standards commission	5
radio telescopes	5
old gentleman	5
will turn	5
galvanic current	5
sympathetic clocks	5
count ouvaroff	5
deal time	5
little dog	5
mental powers	5
take hold	5
rick watched	5
solid earth	5
long series	5
ben agreed	5
perfect movement	5
railway station	5
days ago	5
get away	4
august st	4
funds necessary	4
great laws	4
printed paper	4
small ones	4
mr rogers	4
every step	4
richard smith	4
scientific investigator	4
lecture xvii	4
polishing mirrors	4
civil list	4
fairly well	4
may mention	4
th december	4
high position	4
british survey	4
whole sphere	4
may know	4
seven planets	4
wild west	4
telescopic stars	4
stellar universe	4
made experiments	4
french universities	4
dr davy	4
best men	4
good progress	4
six inches	4
late sir	4
tidal phenomena	4
many difficulties	4
scientific discovery	4
native land	4
now going	4
pumping engines	4
every word	4
law proves	4
apparent change	4
printed skeleton	4
greater power	4
nebulous matter	4
several months	4
devoted sister	4
people want	4
made one	4
eighth magnitude	4
will tell	4
gamma draconis	4
apparent time	4
dare say	4
another circle	4
ever met	4
dropped body	4
first found	4
nearly one	4
women studying	4
day long	4
well understood	4
saw mr	4
new discoveries	4
much smaller	4
mr john	4
hundred million	4
th november	4
old enough	4
earth turns	4
will go	4
first president	4
much shorter	4
five feet	4
must say	4
ever knew	4
second marriage	4
distinguished position	4
judge smith	4
scotty added	4
mean distances	4
mohammed bartouki	4
already known	4
lamp micrometer	4
may still	4
different observers	4
early morning	4
mitchell never	4
whose eyes	4
last sentence	4
partly occupied	4
become acquainted	4
true orbits	4
well might	4
achromatic object	4
large portion	4
rick hesitated	4
man must	4
lecture xviii	4
first second	4
science will	4
lady hamilton	4
either end	4
appendix printed	4
various papers	4
three great	4
much surprised	4
greatest astronomer	4
miss cobbe	4
revolution round	4
decide whether	4
amateur astronomer	4
thirty miles	4
full detail	4
scotty exclaimed	4
dear brother	4
three observations	4
golden mask	4
great eastern	4
help thinking	4
foreign astronomers	4
egyptian scientists	4
well pleased	4
double refraction	4
de sir	4
lord minto	4
became acquainted	4
binary stars	4
little money	4
american method	4
fifty minutes	4
made good	4
attracting power	4
old records	4
astronomical expedition	4
good effect	4
highly esteemed	4
north side	4
remains stationary	4
already begun	4
new age	4
different angle	4
faint star	4
astronomical history	4
went home	4
every little	4
following account	4
complete system	4
time one	4
speak english	4
might become	4
scientific institutions	4
american committee	4
made application	4
infinite distance	4
future happiness	4
say anything	4
every planet	4
move around	4
question now	4
quite true	4
ipswich lectures	4
variable emission	4
may yet	4
english lady	4
radiant point	4
wonderful success	4
telegraphic longitude	4
annual report	4
different times	4
near bury	4
short periods	4
mr wordsworth	4
universelle des	4
human nature	4
physical explanation	4
john couch	4
first hour	4
sir david	4
became clear	4
just mentioned	4
harmonic analyzer	4
might perhaps	4
attracts every	4
results obtained	4
taken care	4
little one	4
last day	4
sign manual	4
several stars	4
much worse	4
catholic church	4
small house	4
important work	4
eight minutes	4
wondered whether	4
approaching completion	4
james bradley	4
professor benjamin	4
de ses	4
forestry system	4
quite satisfactory	4
greater accuracy	4
experienced astronomer	4
biographie universelle	4
frederick ii	4
essentially different	4
scientific association	4
telescope will	4
right thing	4
make discoveries	4
syndicate made	4
quite certain	4
original papers	4
gravitative attraction	4
european observatories	4
personal history	4
pass near	4
des travaux	4
entrance gate	4
holy church	4
duly set	4
finite differences	4
prize examination	4
made another	4
far back	4
well satisfied	4
every respect	4
von struve	4
us suppose	4
single planet	4
general reader	4
much labour	4
two ends	4
pi mr	4
appointed astronomer	4
never seemed	4
royal charter	4
great trouble	4
took advantage	4
planetary movements	4
highest class	4
mechanical skill	4
gilbert annal	4
direct observation	4
may imagine	4
may remember	4
naval academy	4
will think	4
new office	4
spring tide	4
bodies fall	4
different direction	4
going forward	4
saturday evening	4
prismatic spectrum	4
concrete mix	4
will account	4
every case	4
large body	4
many respects	4
celestial motions	4
astronomical director	4
reader will	4
aus einem	4
von zach	4
mean longitude	4
various objects	4
orbit must	4
system known	4
one moment	4
illustrious astronomer	4
algebraic equation	4
much use	4
directly proportional	4
accurate knowledge	4
photographic plate	4
go ahead	4
edmund halley	4
variable density	4
manuscript observations	4
observation made	4
saw nothing	4
daily life	4
professor tait	4
earth will	4
first discovery	4
one ever	4
stars whose	4
travaux de	4
thirty feet	4
scientific people	4
long list	4
little village	4
davies gilbert	4
work required	4
certain point	4
hardly possible	4
three children	4
morrow morning	4
deeply impressed	4
small portion	4
year mr	4
senior optimes	4
great detail	4
questions given	4
much nearer	4
disturbing causes	4
really great	4
like light	4
mean solar	4
little attention	4
will enable	4
extra high	4
whose labours	4
important one	4
ever appeared	4
far less	4
large party	4
true value	4
just received	4
dinner party	4
must admit	4
boys walked	4
old print	4
th july	4
public opinion	4
might see	4
colonial observatories	4
one word	4
margaret fuller	4
revolutionibus orbium	4
good night	4
must look	4
new light	4
last long	4
run away	4
cat mystery	4
remember one	4
moving carriage	4
frequent visits	4
soon appeared	4
also used	4
hartson brant	4
venus expeditions	4
many trials	4
new methods	4
ten miles	4
european magazine	4
true place	4
planetary orbit	4
narrow street	4
neighbouring stars	4
will use	4
sure enough	4
two systems	4
psychical research	4
family circle	4
fifteen hundred	4
afterwards master	4
january nd	4
whole mass	4
occupied much	4
mutual attraction	4
great western	4
may appear	4
something wrong	4
late years	4
object glasses	4
grammar school	4
great variety	4
two motions	4
will accept	4
equatoreal observations	4
photographic apparatus	4
official position	4
yesterday morning	4
new equatoreal	4
several others	4
will please	4
move round	4
private accounts	4
famous old	4
also read	4
first mail	4
grey head	4
mr main	4
unassisted eye	4
quarterly review	4
last week	4
cambridge man	4
private expense	4
things celestial	4
red rays	4
young girls	4
fifteen minutes	4
standard time	4
atmospheric electricity	4
may go	4
official business	4
great simplicity	4
various societies	4
human affairs	4
may take	4
apparent position	4
passing away	4
admiral john	4
british catalogue	4
egyptian cats	4
force varies	4
whatever may	4
summer months	4
made various	4
great length	4
right hand	4
much bigger	4
considerable number	4
done much	4
early observations	4
scientific studies	4
accurate determination	4
treasury minute	4
friend dr	4
general remarks	4
herschel married	4
without making	4
one quarter	4
scientific society	4
principal part	4
collegio romano	4
mr christie	4
six hundred	4
elliptic orbits	4
many scientific	4
de france	4
great service	4
quite beyond	4
highest mathematical	4
good order	4
million leagues	4
miss lyman	4
young student	4
intimate friends	4
will stand	4
yet another	4
may remark	4
year old	4
amongst miscellaneous	4
latest years	4
found mr	4
published papers	4
periodic changes	4
come forward	4
journey round	4
remarkable discovery	4
just visible	4
star passed	4
remarkable woman	4
astronomical ephemeris	4
public attention	4
american legation	4
get us	4
whole visible	4
final results	4
whole sky	4
never felt	4
much older	4
practical science	4
human eye	4
common people	4
solar atmosphere	4
general public	4
greenwich visitation	4
celestial body	4
new body	4
several hundred	4
largest telescope	4
shows us	4
take charge	4
dear mr	4
dear friend	4
every student	4
apparent movement	4
short trip	4
parnell winston	4
north star	4
worth seeing	4
hours every	4
felt almost	4
new orleans	4
short stay	4
quite right	4
professor tyndall	4
two components	4
enormously distant	4
whole series	4
forty seconds	4
mathematical studies	4
penitential psalms	4
following statement	4
stars seen	4
prize essay	4
minutes forty	4
tidal energy	4
extraordinary man	4
last seen	4
year later	4
great predecessor	4
scientific adviser	4
old mr	4
days since	4
accurate observation	4
holy gospels	4
front court	4
might lead	4
personal friend	4
went away	4
medal will	4
intellectual power	4
charles musgrave	4
will pass	4
sole object	4
whole period	4
usual winter	4
various contrivances	4
radio astronomy	4
must always	4
dear madam	4
great danger	4
beyond doubt	4
examination began	4
time forward	4
lord bloomfield	4
modern mathematics	4
northern skies	4
may almost	4
azimuth instrument	4
modern telescope	4
gives us	4
opportunity offered	4
real work	4
matter may	4
another way	4
french astronomer	4
without interruption	4
exact positions	4
real value	4
might find	4
short distance	4
circumstances connected	4
first contact	4
will last	4
meteorological establishment	4
earth around	4
boys got	4
sir charles	4
hundred stars	4
foot telescopes	4
see sun	4
intrinsic brightness	4
perpetual motion	4
des musiciens	4
now become	4
astronomical observer	4
little jackal	4
durham militia	4
help us	4
without delay	4
see anything	4
th lord	4
chromatic aberration	4
two forces	4
scientific england	4
planets revolve	4
another cause	4
scientific character	4
last three	4
brother came	4
immense quantity	4
must wait	4
mathematical calculation	4
new board	4
new position	4
high degree	4
long wished	4
trigonometrical survey	4
work went	4
egyptian gods	4
annual motion	4
without reason	4
new king	4
pretty much	4
archibald smith	4
lord halifax	4
two weeks	4
next term	4
dock yard	4
nothing like	4
public service	4
consummate skill	4
seemed much	4
curious fact	4
general accuracy	4
eight feet	4
always seemed	4
cardinal antonelli	4
must make	4
lady airy	4
easily seen	4
entirely different	4
towards us	4
new comet	4
egyptian scientist	4
two boys	4
everybody knows	4
exact position	4
past year	4
get rid	4
amateur astronomers	4
uncle arthur	4
first volume	4
infinite patience	4
general rule	4
received us	4
various instruments	4
public schools	4
classes united	4
west point	4
alpha centauri	4
fourth satellite	4
sixteen feet	4
elected president	4
astronomical pursuits	4
cold water	4
made use	4
months old	4
rick stated	4
good faith	4
gave one	4
get along	4
many another	4
de ma	4
numerous observations	4
sunday morning	4
first two	4
last hour	4
see nothing	4
scientific career	4
sidereal system	4
southern ocean	4
otto von	4
important points	4
scotty told	4
laborious work	4
got hold	4
let go	4
boys went	4
planets revolved	4
planetary perturbations	4
best wishes	4
ever produced	4
equatorial protuberance	4
present case	4
brightest stars	4
new telescope	4
relative places	4
calculate back	4
rick put	4
annual examination	4
comparatively easy	4
two distinct	4
states coast	4
cette occasion	4
planet like	4
might seem	4
foot newtonian	4
scientific labors	4
must give	4
various times	4
seven days	4
totally lost	4
one result	4
visited cambridge	4
fundamental data	4
autograph letter	4
gave us	4
modern geometry	4
english society	4
stars like	4
afterwards published	4
west highlands	4
turned toward	4
royal institution	4
magnetical observations	4
frederic vi	4
practical purposes	4
fine night	4
early youth	4
shall ever	4
may perhaps	4
just now	4
th airy	4
old idea	4
old lady	4
eldest brother	4
solar tables	4
thousand miles	4
eminent men	4
national intelligencer	4
hill saunders	4
william hamilton	4
screw driver	4
got back	4
land obstruction	4
every new	4
two laws	4
distant bodies	4
seem strange	4
might know	4
difficult task	4
may call	4
two pieces	4
careful measurements	4
sidereal heavens	4
lord burlington	4
interior satellite	4
years younger	4
charles ii	4
passed without	4
died away	4
visitors states	4
white hair	4
never ceased	4
la rue	4
diurnal movement	4
much anxiety	4
telescopic observations	4
naturally led	4
meridian conference	4
wind blew	4
apparent place	4
one little	4
billion tons	4
soon afterwards	4
friend mr	4
high powers	4
dwelling house	4
twelve months	4
scarlet fever	4
large sum	4
various correspondence	4
two parties	4
wave length	4
sixteen hours	4
eclipse expedition	4
galvanic communications	4
mr adams	4
big enough	4
observed places	4
orbium coelestium	4
ten minutes	4
astronomical photography	4
old drawing	4
big sudanese	4
still greater	4
disturbing action	4
planet venus	4
just behind	4
distinguished consideration	4
long run	4
police officer	4
sidereal time	4
different observatories	4
never seems	4
will soon	4
accurate observations	4
feel like	4
twelve miles	4
th august	4
comes back	4
will prove	4
taking charge	4
tychonic system	4
professor winlock	4
round three	4
much disappointed	4
another letter	4
great astronomers	4
free trade	4
future ages	4
observatory may	4
official duties	4
shall never	4
worked together	4
must understand	4
modern astronomers	4
old home	4
till one	4
might say	4
joseph banks	4
chronometer business	4
frequent references	4
taken part	4
first commissioner	4
remarkable fact	4
de luc	4
physical reason	4
nothing now	4
et de	4
made great	4
first night	4
well filled	4
newton made	4
french mathematician	4
great mathematicians	4
planet also	4
meridian observations	4
bristol channel	4
friend miss	4
little car	4
every thing	4
great star	4
first thought	4
still remains	4
law asserts	4
stellar system	4
rocky mountains	4
years passed	4
right now	4
miles distant	4
troy weight	4
great success	4
still preserved	4
distinguished men	4
john rodgers	4
useful work	4
orbital motion	4
eminent mathematician	4
solar attraction	4
evidence given	4
always remain	4
far enough	4
always thought	4
early evening	4
privy councillor	4
association met	3
scientific societies	3
stair douglas	3
london university	3
constantly obliged	3
temperance hall	3
led galileo	3
mich bode	3
lunar eclipse	3
new observatory	3
afterwards lord	3
report concludes	3
si muove	3
nine months	3
lead us	3
approximate circle	3
religious examination	3
little ones	3
splendid discoveries	3
miles south	3
leading scientific	3
accordingly sent	3
find whether	3
line now	3
evening star	3
accurate time	3
altazimuth instrument	3
seemed like	3
straight ahead	3
first acquaintance	3
full powers	3
place among	3
tall russians	3
great tube	3
violet rays	3
lawrence scientific	3
orbits round	3
health began	3
old state	3
great services	3
made elsewhere	3
carefully examined	3
new lunar	3
boys rode	3
inverse problem	3
became well	3
rigorous examination	3
hall porter	3
christmas harbor	3
original thermometers	3
nearly three	3
one examiner	3
next great	3
successive propagation	3
matter attracts	3
quite enough	3
probably without	3
great admirer	3
might prove	3
wheel around	3
simple one	3
human vision	3
calculating machine	3
hollow sphere	3
pay attention	3
real danger	3
dear doctor	3
inventive genius	3
two small	3
kind enough	3
pulled back	3
like children	3
whose business	3
gladly accepted	3
made us	3
pressed us	3
many thanks	3
mechanical theory	3
two good	3
strongly impressed	3
house committee	3
numerical form	3
cape observations	3
low tides	3
senior fellows	3
given great	3
short expedition	3
scouring action	3
frequently prevented	3
missing planet	3
southern latitude	3
south kensington	3
light takes	3
official instructions	3
now engaged	3
another point	3
new building	3
dark screen	3
mountain regions	3
first report	3
copernican systems	3
married life	3
transit instruments	3
cavendish square	3
vast amount	3
national museum	3