THE TEMPERATURE OF THE MONKEY AND ITS DIURNAL VARIATION. 87 



A.M. 



Noon 



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12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 Hours 



Fig. 3. — Mean diurnal temperature curve for Periods I., II., and III. in D {Macacus 

 cyanomolgus), 6 aged. The continuous line represents Period I., the interrupted 

 line II., and the crossed line III. 



39 c 



Noon 



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12 12345678 9 10 11 12 12 34567 89 10 11 12 Hours 



Fig. 4. — Mean diurnal temperature curve for Periods I., II., and III. in E (Papio 

 hamadryas), 9 adult. The continuous line represents Period I., the interrupted 

 line II., and the crossed line III. 



