n8 



BOTANICAL GAZETTE 



[august 



For purposes of contrast, and as indicating the direct connection 



amount 



termination 



(IX). instead of being combined, as in some 



with others. 



Davis 



TABLE VIII 



Date 



Time 



Hours elapsed 



February 27 



28 



29 



29 



March 1 



1 

 2 

 2 



3 

 4 



4 



5 



5 

 6 



4:00 P.M. 

 "4:00 P.M. 



9:00 A.M. 



3:30 P.M. 

 10:00 A.M. 



6:30 P.M. 

 Ii:oO A.M. 



6:00 P.M. 



9:30 A.M. 



9:30 A.M. 



5:30 P.M. 



9:00 A.M. 



4:00 P.M. 



3:00 P.M. 



* ft 



Room 



1904 



24.0 

 41 .0 



47-5 

 66.0 



74- S 

 91 .0 



98.0 



H3-5 



1375 



i4S -5 

 162 .0 



169.0 



192 .0 



i7?8C 



17.7 



17.6 



17.6 



17.6 



17.8 



17.7 



17.6 



175 



174 

 17.6 



174 



17.6 



i8?3oC 

 17.90 



17-85 



17.85 

 18.00 



18.05 

 18.20 



18.25 

 18.40 

 18.70 

 18.70 

 19.10 

 19.30 

 20. 10 



IOII 



i8?2oC 

 17.90 

 17.80 

 17.80 



18.15 

 18.40 

 19.00 



19-35 

 20.10 



21.4° 



22.00 



23.10 



23-5° 

 24.38 



California, were used. Much 



many 



removed 



as possible. The cleaned residue was then treated with corrosive 

 sublimate solution, and washed with boiled distilled water as before. 

 Without these extra precautions, the results would have been 



TABLE IX 



Date 



April 3 



4 

 6 



8 



9 



9 



10 



Time 





3:30 P.M. 



4:30 P.M. 

 11:30 A.M. 



9:30 A.M. 

 10:30 A.M. 



4:30 P.M. 



2:30 P.M. 



Hours elapsed 



Room 



25 

 68 



114 



139 



145 

 167 



1907 



i8?2C 



175 

 17.6 



17.6 



17. 5 

 17-5 



i8? 3 oC 



17.70 



18.00 



1911 



19 



20 



20 



90 

 60 



20.90 



i7? S oC 

 17.60 



18.50 

 21.65 



24-75 



25-45 

 27.50 



entirely unreliable. The thoroughness with which one of us 

 cleaned the material is indicated by the figures in table IX, the 

 record of 30 grams of seed from each lot. 



In figs. 9 and 10 are shown the curves constructed on the basis 

 of the records of tables VIII and IX. Allowing for the difference in 



