172 The Ottawa Naturalist. [December 



of white paper was placed on the table behind the g-lass and as the 

 flowers and buds rose, their precise location indicated on the 

 paper. The different reading's of the terminal bud are given in 

 the accompanying diagram. 



Z' 



^L.* n * 4- 29- Sixth stage. Almost ver- 



•>• J 



\^^' tical. 



,>* iv'^' 4' 27- Fifth stage. Nearing the 



^ vertical. 



/ y n\ib^'^^ 4- 25- Fourth stage. One hun- 



' / - - "^C^U^ ^ dred and ten degrees 



change. 



' ' ^ 



//^ ' --- -. 



/ ./, _ ^ 4.24. Third and intermediate 



, ^^'15? 



I 



6 



*^. 4.23. Second and partially re- 

 vived position. 



U.'1i)~Pttl . 4.20. First and prostrate position 



of bud. 



I have no doubt that tables of relative speed giving the ratio 

 of absorption of different plants and different parts of the same 

 plant would be interesting data concerning the duration of life and 

 vitality in plants. This would also form an exceedingly mterest- 

 ing pastime to anyone seeking a few minutes' pleasant recreation 

 during the summer season. 



It may be added that after removing the same specimen from 

 the water and allowing it to droop again, it was ascertained, in 

 two successive experiments that the vitality and power of absorp- 

 tion as exhibited in the degree of energy displayed in the buds and 

 flowers re-assuming their natural and relative positions, diminished 

 each time. 



The last two experiments were made about an hour apart and 

 the plant revived much less rapidly than in the first experiment, 



