240 M. KUHARA 



The base would be identical, according to I, with Hantzsch's 

 dihydrocollidine 1 , and according to II, with a dehydroderivative of 

 Heintz's vinyldiacetonamine 2 ; but from the results of the experiments 

 so far obtained, the author's base cannot be either one] or the other. 

 It is, however, very probable that it has the formula III, considering 

 the experimental results on the behaviour of the base given in the 

 present paper. The details of its structure will be communicated in 

 a future paper, as further investigations are being carried on. 



1. Annalen d. Chem. 215, 1. 



2. „ „ „ 178, 320; 189, 314; 191, 122. 



Sept. 1889, Chemical Laboratory, 

 First Kötö-Chu-Gakko. 



