Volume 1

Descriptive and illustrated catalogue of the physiological series of comparative anatomy contained in the Museum of the Royal College of Surgeons in London / [By R. Owen].

Royal College of Surgeons of England. Museum

Date:: 1833-40

Credit: Descriptive and illustrated catalogue of the physiological series of comparative anatomy contained in the Museum of the Royal College of Surgeons in London / [By R. Owen]. Source: Wellcome Collection.

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$204. A section of the proximal extremity of the humerus of a young person, showing the reticular cancellous structure of the epiphysis, and of the extremity of the diaphysis of the bone. 205. The counterpart of the preceding preparation. 206. A section of the astragalus of a young person, exhibiting the reticular cancellous structure of the whole bone, the cancelli being largest in the centre. 207- The counterpart of the preceding preparation. 208. The os naviculare of a young person, longitudinally bisected, to show the cancellous structure nearly uniform throughout the bone. 209. The os cuneiforme internum of a young person, longitudinally bisected, and showing a similar structure. 209 a. A section of the diaphysis of a human tibia, injected; exposing the medullary cavity, and the secreting vessel of the marrow (Arteria me- dullaris), ramifying on the lining membrane of the cavity. Donor, William Lawrence, Esq. F.R.S. b. In Birds. Showing the cavities of the bones which contain air. 210. The os humeri of an Owl (Strix : Linn.), which shows the cavity free from marrow, and cellular only at the extremities, and therefore a good receptacle for air. Near to the joint of the shoulder may be observed the aperture by which the air passes into the cavity. “ In most birds, I believe in all that fly, these axillary cells communi- cate with the cavity of the os humeri, by means of small openings in the hollow surface near the head of that bone : in some they are continued down the wing, communicating with the ulna and radius ; in others they reach even as far as the pinions. The ostrich, however, is an exception:” \i. e. has no air even in the humerus.] Hunter, On the Animal (Economy, 4to. p. 92. 211. A longitudinal section of the ulna of the same bird as the preceding spe-$