126 



the title of " Sinnesorgane im Pflanzenreich zur Perception me- 

 chanischer Reize (Leipsic, 1901), in which a historical resume of 

 the researches upon the included subjects is attempted. The 

 larger, portion of the work is devoted to " Special investigations " 

 upon the sensory organs of various plants. 



FlG. I. Leaf of Entada scam/ens with terminal tendrils. 



In this section Dr. Haberlandt describes briefly the results of 

 his own work upon Entada scandens and seems wholly unaware 

 of my own more detailed work published three years previously as 

 noted above, to which he has not added a single fact, or general- 

 ization of any importance. He has been equally unconscious of 

 the facts in regard to the sensory cells and perceptive organs of 

 other tendrils described by myself still earlier in the Annals of 

 Botany (39 : 394. 1896). If Dr. Haberlandt's remissness con- 

 sisted solely in a disregard of my published results the fault 

 might be easily condoned, but a glance at the other sections of 

 the treatise shows that a description of the similar omissions in 

 regard to other work would fill a complete number of this 

 journal. 



It is truly lamentable that with such opportunity for exactness 

 and completeness Dr. Haberlandt has written a paper historically 



