24 Development of the Bones. 



foetus between the sixth and seventh month — dried — showing 

 its development. B. C. 1. N. 63. 



2. 31. Development of Parietal Bones. — Parietal bones of a 



foetus between the seventh and eighth month — injected with 

 vermilion and in spirit. 



The preparation shows the blood-vessels and bony spicules 

 radiating out from the centres of ossification. B. C. 1. N. 64. 



2. 32. Development of Parietal Bones.— Parietal bones of a 



foetus about the eighth month, showing the extent of develop- 

 ment reached at that stage. B. C. 1. N. 65. 



2. 33. Development of the Skull and Face.— Bones of the 



head of an infant at birth — macerated and mounted separately 

 — showing the relative proportion of bone formed at birth. 

 Prepared by Vasseur, Paris. G. C. 3547. 



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



2. 34. Development of Spine. — The spine of a foetus, said to 

 be about the fourth month — in spirit — apparently for the 

 most part cartilaginous. B. C. 1. IS". 71. 



2. 35. Development of Spine. — The spine of a foetus, said 

 to have been about the fourth month — in turpentine. 



Centres are seen in the mid-dorsal and mid-lumbar bodies 

 and in the upper sacral bodies, as well as in the laminae and 

 pedicles of most of the vertebrae. B. C. 1. N. 72. 



