THE SKIN. 



73 



Fig. 174. 



Fig. 173. (ERCOLANI.) a, Compound se- 

 baceous gland from the skin of dog's scrotum; 

 5, Sweat-gland in the dog ; c, Its opening. 



Fig. 174. a, Sebaceous gland from the skin 

 of horse's scrotum ; a, Duct of gland ; 6, Lesser 

 ducts; c, Acini or glandular follicles. 



Fig. 173. 



