22 



ILUNOIS BIOLOGICAL MONOGRAPHS 



[142 



Minutes 

 1200 



1080 



960 



840 



720 



600 



480 



360 



240 



120 



+ 

 -+  1 



100 



t 



10 



0.05. 0.1. 0.15. 0.2. 0.25. 0.3. 0.35. 0.4. 0.45. 0.5N. 

 Figure 10. Barium chloride 



TABLE XII 

 Barium Chloride. Temperature 20.5°C. November 22, 1916 



