X. 



THE SPERMATOGENESIS OF THE MONGOOSE; AND A 

 FURTHER COMPARATIVE STUDY OF MAMMALIAN 

 SPERMATOGENESIS, WITH SPECIAL REFER- 

 ENCE TO SEX CHROMOSOMES. 



BY H. E. JORDAN, 

 Professor of Histology and Embryology, University of Virginia. 



One plate and nine text-figures. 



163 



