102 



GIBBS. 



EXPERIMENTS WITH THREE MONKEYS IN THE SUN AND IN THE SHADE, AT 



BAGUIO. 



The animals were small, tame, accustomed to captivity, and 

 thickly covered with dark gray, almost black, hair. To facilitate 

 the observations and prevent undue movement, they were tied 

 to small boards which could be moved easily. So far as could be 

 observed all were in perfect health. 



Table VII. — Temperatures of monkeys in sun and in shade. First series. 



May 7, 1911. 



Position. 



Time. 



Temperature 

 of- 



Monkey 



No. 1 in 



sun. 



Monkey 

 No. 2 in 

 shade. 





a. wt. 

 9.15 

 9.40 

 9.45 

 9.50 

 9.53 

 9.54 

 9.56 

 9.59 

 10.01 

 10.04 

 10.07 

 10.09 

 10.10 









45.2 

 40.6 

 40.6 

 42.7 

 43.6 

 45.5 

 47.6 

 48.8 

 50.9 

 62.8 

 54.0 

 (Dead) 



34.2 



Temperature under skin a _ -._ .. 



Do. - - - 



Do 



Do 



Do 



Do . - 



Do .. . . . 



Do— -., — 



Do ^ 



Do 



Do . - . 





* The thermocouple was placed under the skin and not moved until after the death of 

 the monkej'. 



Monkey No. 2 was in the shade cast by a piece of heavy card- 

 board, the two animals being not over 0.5 meter apart. He was 

 perfectly comfortable during the entire period of the experiment 

 and showed no noteworthy variations from a perfectly normal 

 animal. 



Monkey No. 1 suffered a little and several times attemped to turn his 

 hot side, the back, away from the sun. The respirations after a short 

 time became more rapid and death ensued in about fifty minutes. Some 

 urine was passed and at the last there was frothing at the mouth. 



Necropsy was performed about twenty-five hours after death and only 

 the brain removed. The superficial vessels were congested and here and 

 there extravasations beneath the pia-arachnoid were present. No evidence 

 of haemorrhage into the substance of the brain upon section was noted. 

 The brain was preserved in 10 per cent formalin. 



