THE JOURNAL 



OF 



EXPERIMENTAL ZOOLOGY 



CONTENTS 



VOLUME V. NO. 1. NOVEMBER 1907 



DAVID D. WHITNEY 



■ A New Explanation of the Mechanics of Mitosis. 

 HEEBEBT EUGENE WALTER 



The Reactions of Planarians to Light. 



VOLUME V. NO. 2. IN PRESS 

 HEBBEBT EUGENE WALTEB 



MAEY ISABELLE STEELE 



ALEXANDEB PETBUNKEVITCH 



Studies in Adaptation. 1.— The Sense of Sight in Spiders. 



PRICE OF SUBSCRIPTION PER VOLUME 



THE JOURNAL OF EXPERIMENTAL ZOOLOGY 



2 Hiilhouse Avenue, . New Haven, Conn. U. S. A. 



