and prepared by him. The odontoid process is fully developed, and forms a perfectly distinct bone.
In the Proc. of the London Pathological Society (Vol. ix. p. 346) , a case is reported and figured of separation of the odontoid process and axis ; but from disease, as it was sup- posed.
In this and the last specimen there is no appearance either of disease or fracture. 1858. Dr. J. Wyman.
201. Atlas ; six specimens, to show the development of a fora- men for the passage of the vertebral arteries over the wings and behind the articulating processes ; in one there is not even a groove. 1849. Dr. 0. W. Holmes.
202. Spine of an adult ; six lumbar vertebrae. 1847.
Dr. J. C. Warren.
203. Sacrum ; four bones. 1850. Dr. 0. W. Holmes.
204. Sacrum ; a small bone is connected with the last vertebra, and from these two there stand off three other coccygeal bones, at an angle of about 45. 1857.
Dr. E. M. Hodges.
205. Thorax of an adult ; thirteen pairs of ribs. 1859.
206. The two upper ribs. Prolongation upward from the upper edge of the second, and meeting the first, but not co-ossified with it. 1847. Dr. J. O. Warren.
207. Rib, with its cartilage ; and showing commencing 'bifurca- tion at its anterior extremity. 1859.
Dr. J. B. S. Jackson.
208. Spine, ribs, and pelvis, in connection. Most of the bodies of the cervical vertebrae, and of the four upper dorsal, are more or less fused. The corresponding laminae are also fused, and imperfectly and irregularly developed. There are thirteen pairs of ribs, and upon the left side the three first are fused ; these last being not much larger than one,
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