I. INFLUENCES OF CONSTANT AND VARI- 

 ABLE TEMPERATURES. 



The tests here enumerated were made in an incubator of which 

 the temperature was controlled by a galvanic current communica- 

 ting with clock-work, and in a steam-heated forcing-house. In 

 the incubator the temperature rarely varied three degrees, while 

 the position of the seed-table in the forcing-house was such that 

 variation sometimes amounted to sixty-five degrees. In .some 

 cases, duplicate tests were made in an out door cellar which was 

 used for the storing of nursery stock. 



I. Bean, Green Flageolet. — Department of Agriculture, 



No. I, loo beans in folds of cloth in seed-pan, in incubator. 

 No. 2, same in forcing-house. 



SOWN MAR. 29. 



Epitome. — Under constant temperature sprouting was much 

 more rapid, and the total per cent, was also greater, although the 

 mean temperature in the other test was somewhat higher. 



2. Bean, Greejt Flageolet. — Department of Agriculture. 



No. I, 100 beans on sand and covered with cloth in seed-pan, in the incubator. 

 No. 2, same in forcing-house. 



SOWN MAR. 29. 



Epitome. — Sprouting was rather more rapid under constant tem- 

 perature, although total per cent, of sprouting was slightly higher 

 under varying temperatures. It is probable that this method of 

 sowing is unreliable, as the repetition of this test appears to indi- 

 cate .: 



