30 



nated abundantl}' the fourth day: Iheris germinated the fourteenth 

 day; Trifolium germinated the tenth day; Melon did not germinate 

 in 36 days. 



(r) TEMPERATURES ABOUT 9.2° C. 



Collomia germinated in 6f days after sowing; Lepidium germi- 

 nated the third day ; Linum, 1 seed began to germinate the second day, 

 several others the fourth; Mays, 1 seed germinated the tenth day, 2 

 others the twelfth day, and others afterAvards; Melon did not germi- 

 nate; Nigella germinated the fifteenth day; Sesamum did not germi- 

 nate; Sinaj)ls germinated at the end of 3i days; Iheris germinated 

 the sixth day ; some Trifolium seeds germinated the fifth day, others 

 the sixth, eighth, etc. 



(g) TEMPERATURES FROM 12° TO 13° C. 



For the first three days the average temperature of the soil was 

 12.9°. The individual results were as follows: Collomia germi- 

 nated from the sixth to the seventh day ; Lepidium germinated after 

 about If days (in a second experiment at 12.9° C. it germinated in If 

 days as before) ; Linum germinated in about 2f days (in a second 

 experiment at 13.5° it germinated at the end of If days) ; 2 Mays 

 seeds out of 17 germinated at the end of the fifth day, and half of 

 them had germinated on the seventh day; Melon did not germinate 

 during 60 days ; a quarter of the Nigella seeds germinated the ninth 

 day; Sesamum germinated abundantly at the close of the ninth day; 

 Sinapis germinated after If days (in a second experiment it germi- 

 nated in about 40 hours, the average is 41 hours under a temperature 

 of 12.9° C.) ; Iheris germinated in 3^ to 4 days; Trifolium seeds 

 sprouted unequally at the end of the third day (a second experiment 

 gave 3 hours less than 3 days, or 69 hours, under a temperature 

 of 13°). 



(h) TEMPERATURES OF ABOUT 17° C. 



Lepidium (mean of two experiments) germinated in 1^ days, under 

 17.05° ; Linum, mean of 2 experiments, germinated in 3 daj^s, tem- 

 perature 17.05° C. ; Trifolium, 2 experiments, germinated in 2.6 

 days, temperature 17.05° C. ; Sinapas, mean of 3 experiments, germi- 

 nated in 1.7 days, temperature 17.2°; Collomia, 1 experiment, under 

 16.9° germinated in 5^ days; Mays, 1 experiment, germinated in 3f 

 days, temperature 16.9° C. ; Melon, 1 experiment, began to germinate 

 in 9i days, temperature 16.9° ; Nigella, 1 experiment, germinated the 

 sixth day, temperature 16.9°; Sesamum. 1 experiment, germinated 

 the third day, temperature 16.9°; Iheris, 1 experiment, germinated 

 the fourth day, temperature 16.9°. 



