Development of the Spine. 25 



2. 36. Development of Spine. — The spine of an infant at 

 birth — injected, and in spirit — with the soft parts cleaned away 

 but the .cartilage left. 



The tips of the transverse and spinous process, as well as 

 portions of the bodies and the lateral masses of the sacrum, are 

 still, cartilaginous. B. C. 1. N. 76. 



2. 37. Development of Spine. — Bony portion of spine and 

 ribs of an infant at birth — macerated and mounted on card- 

 board — showing the bony centres. Prepared by Vasseur, Paris. 



G. C. 3544. 

 Presented % Charles W. Cathcart, F.R.C.S.E., 1893. 



2. 38. Development of Spine. — Dorsal vertebrae of a child, 

 one year old — injected, the periosteum removed, and in spirit. 



The tips of the spinous and transverse processes are still 

 cartilaginous, and the epiphyses of the bodies have not yet 

 united with the central masses nor the latter with the centres 

 for the pedicles. B. C. 1. K 73. 



2. 39. Development of Spine. — Bodies of ten dorsal vertebrae — 

 said to be from a child one year old. B. C. 1. N. 75. 



2. 40. Ossification of Vertebrae. — Adult dorsal vertebra — 

 macerated, and sawn up — so as to show the portions which 

 ossify separately. Prepared by Vasseur, Paris. G. C. 3550. 

 Presented by Charles W. Cathcart, F.R.C.S.E., 1893. 



2. 41. Development of Thorax. — Skeleton of the thorax of 

 very young foetus, "under three months." B. C. 1. N. 70. 



