274 



Transactions of the Canadian Institute. 



[Vol.. VII. 



Plant C. — Continued. 



Nov. =; 

 6 

 8 



lO 

 12 



13 



14 

 15 

 16 



17 

 i8 



jq 

 21 



22 

 24 



2S 

 26 

 27 

 28 



2Q 



30 



Dec. I 



3 



4 

 S 

 7 



14 

 16 

 16 

 16 



— CJ 



O C 

 "? QJ 



J 



75 

 12 



19 

 62 



25 

 3 

 6 



12 



37 



62 



6 



19 

 31 

 44 

 50 



S "Si 



37 

 6 



44 



19 

 19 



19 

 6 



24 

 38 

 62 

 12 

 24 

 38 

 53 



Broken off ; bud from 4th node recorded. 



Two buds springfingf from near the base. 



Branches from near the base recorded and 

 only the total increase in leng-th of stem 

 given. 



End of the series. (51 days). 



It will be noticed that the plant in soil in the flower pot being 

 transplanted from soil, remained almost at a standstill for six or seven 

 days, when growth proceeded more or less regularly. The plants whose 

 roots were in water suffered no such standstill in regard to growth as 

 did the plant in the soil, although all were taken from the same 

 propagating-box. 



Series II. 



This series of experiments was carried through in the physiological 

 laboratory at the botanic gardens during the month of December, 1899. 

 The records given in the table below show the daily increase in length 

 of stem and also the increase in number of leaves. All the plants were 

 subjected to the same conditions of light, and as nearly as possible, to 

 the same conditions of temperature, but owing to the fact that some of 

 the plants were under bell jars, the condition of temperature, as well as 

 of moisture could not be kept exactly the same. 



