139] 



THE GOLDFISH AS A TEST ANIMAL— POWERS 



19 



Minutes 

 840 



720 



600 



480 



360 



240 



120 



100 



t 



7 

 6 

 5 

 4 



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

 Figure 7. Magnesium chloride 



TABLE rX 



Magnesium Chloride. Temperature 20.5°C. November 8 to 14, 1916 



