DISEASE. XX111 



It is by no means certain, however, that the testis should be 

 looked upon as an excessive development ; it is equally 

 possible that the ovary is formed by an arrest of a genera- 

 tive gland which would otherwise have been a testicle. 

 Sometimes an additional septum is formed in the heart ; 

 but this may arise from mere hypertrophy of the musculi 

 papil lares. 



In conclusion, attention is drawn to the desiderata 

 in this collection ; for although it is a very splendid one, 

 containing many almost unique preparations, it has 

 deficiencies which could easily be supplied. Many forms 

 of the lesser degrees of malformation which possess great 

 practical interest, as hare-lip, hypospadias, &c., are nearly 

 unrepresented ; whilst no collection has hitherto been made 

 of variations in the conformation of muscles, bones, and 

 vessels, which could not fail to possess great value, and to 

 afford material aid in the study of Teratology. 



