Hydrocephalic Skulls. 419 



halves of the frontal bones. The ossification of the frontal 

 bones is very imperfect ; numerous patches of membrane show 

 themselves in the course of the bone. 



The spinal canal, from the fourth Dorsal Vertebra down- 

 wards to the upper part of the sacrum, is quite open, corres- 

 ponding to a condition of extensive spina bifida. 



B. C. V. 1. M. 20. 



6. 532. Chronic Hydrocephalus.— Skull-cap of a boy, aged 5 

 years, cleaned, dried, and varnished, illustrating the above. 



The sagittal suture and a large area at the position of the 

 anterior fontanelle are occupied by membrane. The lower 

 extremities of the coronal suture are close together, but are 

 occupied by membrane. The lower part of the frontal suture is 

 united by bone. G. C. 3063. 



Presented by Bryan C, Wallee, M.D. 



6. 533. Remarkable Enlarg-ement of the Skull from Hydro- 

 cephalus. — Skull of a woman, aged 21 years, macerated, illus- 

 trating the above. 



" By Dr. John Campbell, one of the surgeons to the Royal Infirmary, 

 by whom this skull was presented to the College, I am informed that 

 the head of the person from whom this cranium was obtained was of the 

 usual size at birth; that the child was, however, unable to manage it' 

 (move it about ?) ; " tliat about six months after she screamed violently for 

 several days ; and, in the meantime, the head enlarged so rapidly that in 

 the course of eight or nine days it attained its greatest size. It was 

 firmly ossified at 12 ; and she died aged 21. This woman, who had the 

 free use of the hands, yet never could walk, but moved the legs by 

 raising them over each other, was irascible ; susceptible of pity ; and she 

 had a good memory, a sense of religion, and distinct ideas of right and 

 wrong." From The Edinburgh Medical and SurcjicalJournaJ, vol. xxxviii., 

 1832. Account of a case of Chronic Hydroceplialus, by David Craigie, 

 M.D., page 41. 



The cranium is enormously enlarged in all directions, and 

 measures thirty inches in circumference. It shows the usual 



