March 30th, 1 91 4. Vol. XXXVI., Art 3. 



JR, ^ ® M ft «p 



s *w ^c # jus m 



JOUBNAL 



OF THE 



COLLEGE OF SCIENCE, 



IMPERIAL UNIVERSITY OF TOKYO. 



K. KORIBA. 



Mechanisch-physiologische Studien über die 

 Drehung der Spiranthes-Ahre. 



^ÖWÄ« !l«$%s 



. S 

 TOKYO. 



PUBLISHED BY THE UNIVEKSITY. 



TAIBHO III. 



