Wyman.] 



458 



[April 15, 



was (|uite inarktMl. The measurements and proportions given below 

 are, we believe, api^roximately exact. The lengthening of the head 

 is almost wholly forwards, the index of the foramen magnum being 



Fig. 5. 



Fig. 6. 



only 32.2. The anterior fontanelle is largely open, and is prolonged 

 between the frontals by a space with parallel sides twenty millime- 

 tres in breadth, extending nearly to the nasals. The sagittal suture 

 is completely obliterated in the middle portion for the space of 

 nearly an inch, Fig. 6; for the rest of its extent it is open, the 

 two parietals apjiroaching each other quite closely; in the tore-part 

 the edges are smooth and straight, and in the hinder somewhat 

 serrated, but do not touch. The frontals are very protuberant, and 

 on the inside of each, corresponding very nearly Avith the frontal 

 eminences, are two marked depressions, causing the bone to appear 

 diaphanous in some parts, but, in others, extending quite through; 

 each of these is suri'ounded by a ridge of dense bone (juite unusual 

 in a fetal cranium. These deformities may be compai'ed to the dig- 

 ital impressions of the adult crania. 



VII. To the above instances may be added the following interesting 

 case communicated to me by Dr. W. G. Wheeler of Chelsea, Mass. A. 

 B. was born with the fontanelles closed ; when nine months old she had 

 severe convulsions, after which her health remained feeble. When 

 three years old the convulsions returned, with symptoms of effusion; 

 these were at length followed by gradual recovery; she is now (18G7) 



