MAY 8 1900 



Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XXXV. No. 8. 



MATURATION AND FERTILIZATION IN PULMONATE 



GASTEROPODS. 



By Henry R. Linvillk. 



With Four Plates. 



CAMBRIDGE, MASS., U. S. A. : 



PRINTED FOR THE MUSEUM. 

 May, 1900. 



