PROCEEDINQS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Third Series 



Zoology Vol. II, No. 6 



I 



On the Inhibition by Artificial Section 



of the Normal Fission Plane 



in Stenostoma 



BY 



William E. Ritter and Miss Edna M. Congdon 



With One Plate 



Issued December 26, igoo 



SAN FRANCISCO 

 Published by the Academy 

 1900 



