.vTi •fe^ V>, IMAGE EVALUATION TEST TARGET (MT-3) 1.0 I.I ■- ilM u I 40 2.5 2.2 2.0 1.8 1.25 U_ 1 1.6 -^ 6" ► <^^ 7 Photographic Sciences Corporation (\ "^ y ^ c\ \ ^ '^^ 23 WEST MAIN STREET WEBSTER, N.Y. 14580 (716) 872-4503 CIHM/ICMH Microfiche Series. CIHM/ICIVIH Collection de microfiches. Canadian Institute for Historical IVIicroreproductions / Institut Canadian de microreproductions historiques Technical and Bibliographic Notes/Notes techniques et bibliographiques The Institute has attempted to obtain the best original copy available for filming. Features of this copy which may be bibliographically unique, which may alter any of the images in the reproduction, or which may significantly change the usual method of filming, are checked below. Coloured covers/ Couverture de couleur I I Covers damaged/ Couverture endommagde □ Covers restored and/or laminated/ Couverture restaur^ et/ou pelliculie n n n Cover title missing/ Le titre de couverture manque I I Coloured maps/ Cartes g^ographiques en couleur nt Coloured ink (i.e. other than blue or black)/ ncre de couleur (i.e. autre que bleue ou noire) I I Coloured plates and/or illustrations/ D Planches et/ou illustrations en couleur Bound with other material/ ReliA avec d'autres documents Tight binding may cause shadows or distortion along interior margin/ La re liure serrie peut causer de I'ombre ou de la distorsion le long de la marge int^rieure Blank leaves added during restoration may appear within the text. Whenever possible, these have been omitted from filming/ II se peut que certaines pages blanches ajoutdes lors d'une restauration apparaissent dans le texte, mais, lorsque cela dtait possible, ces pages n'ont pas i\6 filmies. Additional comments:/ Commentaires supplimentaires; L'Institut a microfilm^ le meilleur exemplaire qu'il lui a iti possible de se procurer. Les details de cet exemplaire qui sont peut-dtre uniques du point de vue bibliographique, qui peuvent modifier une image reproduite, ou qui peuvent exiger une modification dans la mdthode normale de filmage sont indiqu^s ci-dessous. I I Coloured pages/ D Pages de couleur Pages damaged/ Pages endommagdes Pages restored and/oi Pages restaurdes et/ou pelliculdes Pages discoloured, stained or foxei Pages dicolories, tachet^es ou piqu^es Pages detached/ Pages d6tach6es Showthrougiiy Transparence >f prir n^gale de I'impression supplementary materii Comprend du matiriel supplementaire Only edition available/ Seule Edition disponible r~~n Pages damaged/ I I Pages restored and/or laminated/ r~~\ Pages discoloured, stained or foxed/ I I Pages detached/ r~n Showthrougii/ □ Quality of print varies/ Qualiti in^gale de I'i j I Includes supplementary material/ r~n Only edition available/ Pages wholly or partially obscured by errata slips, tissues, etc., have been refilmed to ensure the best possible image/ Les pages totalement ou partiellement obscurcies par un feuillet d'errata, une pelure, etc., ont M filmies d nouveau de facon it obtenir la meilleure image possible. This item is filmed at the reduction ratio checked below/ Ce document est film^ au taux de reduction indiquA ci-dessous. 10X 14X 18X 22X 26X 30X y 12X 16X 20X 24X 28X 32X The copy filmed h«ro has b—n reproducad thanks to tha ganarosity of: Medical Library McGill University Montreal Tha imagaa appaaring hara ara tha bast quality possibia considaring tha condition and lagibility of tha original copy and in icaaping with tha filming contract spacificationa. L'axamplaira filmi fut raprodnit grAca k la ginArositA da: Medical L")rary McGill '/niversity Mor .eal Las ;'( meaning "CCiM- TINUED"), or tha symbol V (meaning "END"), whichever applies. Un dee symboies suivants apparattra sur la darnlAre image de cheque microfiche, selon le cas: la symbols «»* signifle "A SUIVRE", le symbols y signifie "FIN". Maps, plates, charts, etc., may be filmed at different reduction ratios. Those too large to be entirely included in one exposure are filmed beginning in the upper left hand corner, left to right and top to bottom, as many framea aa required. The following diagrams illustrate the method: Les cartes, pianchaa. tableaux, etc., peuvent Atre filmte A das taux da reduction diff Arents. Lorsque le document est trop grand pour Atre reproduit en un seui clichA, ii est fiimA A partir da Tangle supArieur gauche, de gauche A droits, et de hai^t an bas, an prenant le nombre d'Imagas nAcessaira. Las diagrammea suivants illustrent la mithoda. 1 2 3 1 2 3 4 5 6 ^w^mmmm. ^■7^ f'ftf:M'.'. iW-MM ^■J:d^^^'^ ':/'''■■: w*:- j**!??-; bii^j*»^)6^.i^fe0c ^f ^.;^ g^^3j.v , ,>t^^ s* ,i(-;»"^ -^. -.f ""^•^tl^^ ANOMALOUS MUSCLE OF THE THORAX, CONNECTED WITH THE DIAPHRAGM. By Francis J. Shepherd, M.D., Profesmr of Anatomij in M'Gill University, Montreal. In a well developed male subject which was dissected during last winter was found the following muscle : — On removing the left lung and parietal pleura, a long flat ribbon- shaped muscle was seen running down the left side of the bodies of the dorsal vertebrae ; it arose from the anterior surface of the head of the sixth and seventh ribs, near the vertebral articulation, by a fleshy origin half a centimetre wide. As the muscle descended it became broader, until it reached a width of two and one-half centimetres. It ended in two slips, the most posterior becoming tendinous, and then acfain muscular, blended finally with the lesser arcuate ligament of the left side ; the anterior slip, which was muscular to its termination, but had a tendinous intersection, was continued with the left crus of the diaphragm, becoming blended with it. Anomalous muscles connected with the diaphragm are rare, and I have been unable to discover a case similar to the one above described. The significance of this muscle I am at a loss to determine. Might it not be a remnant of what Prof. Sir Geo. Humphry calls the suh- vertebral rectus which is found in the Japanese salamander, of which the crura .i" the diaphragm forms the lumbar remnant in mammals t