A Monster Stiiro-eon 



571 



As far as I am aware, no explanation of 

 this extraordinary proceeding has been offered. 



The skull of the sturgeon in the skin is 

 very often preserved in our museums ; but 

 from the cartilaginous character of the bones, 

 the skull itself is very seldon mounted. I 

 may therefore be excused for calling atten- 



tion to a magnificent preparation in tlie 

 Museum of the Royal College of Surgeons in 

 which the soft parts of the framework are 

 modelled and replaced. It is, in fact, the 

 only preparation that I have ever seen that 

 shows perfectly the osteology of the skull of 

 a large cartilaginous fish. 



