XII, B, 1 



Shaklce: Experimental Acclimatization, 



5 



sun, yet there was a distinct measureable effect pro(Juced. Table 

 II shows the effect of the sun upon this monkey as indicated by 

 body temperature. 



Table II. — Effect of sun upon monkey's temperature. Monkey U in the sun, 

 1 meter above the ground, November 29, 1911. 



Time. 



Air 

 tem- 

 pera- 

 ture. » 



Body 

 tem- 

 pera- 

 ture. 



Time, b 



Black- 

 bulb 

 read- 

 ing. 



Wind. 

 Meters 

 per sec- 

 ond. <: 



Rela- 

 tive 

 humi- 

 dity. 



Remarks. 



o. m. 



•c. 



"C. 



a. 7n. 



= C. 



P.ct. 







8.10 

 8.35 



25 

 28 



38 











In animal house. 



Exposed to sun at 8.35 a. m. 













9.28 



29 



39.7 



9.00 



<i48.2 



0.0 



59.0 



After 63 minutes' exposure, 

 tress symptoms. 



No dis- 



10.25 



30 



40.8 



10.00 



'151.7 



2.0 



56.0 







11.25 



30.2 



39.6 



j 11.00 

 I 12.00 



47.7 

 447.3 



3.0 

 3.5 



56.0 

 56.0 



No distress symptoms. 

 Do. 





p. m. 







p. nt. 













1.15 



32 



39.4 



1.00 



a 50. 9 



4.0 



61.5 



Do. 





2.15 



32 



40.0 



2.00 



50.0 



0.0 



48.0 



8 minutes of cloud (1. 47-1. 55) 

 tress symptoms. 



no dis- 



3.20 



31 



39.6 



3.00 



447.2 



3.0 



46.0 



No distress symptoms. 





4.15 



30 



39.4 



4.00 



d44.4 



0.0 



50.0 



7 minutes of cloud (3. 20-3. 27) 

 tress symptoms. 



nodis- 



» The nir temperature here given was that registered by an ordinary chemical thermom- 

 eter hanging in the sun near the monkey. 



^ Time of Weather Bureau observation. 



•^ Wind velocity in meters per second. 



* Interpolations. Since the black-bulb readings at the Weather Bureau are taken at rela- 

 tively infrequent intervals, a method of obtaining interpoktioiis recommended by the Weather 

 Bureau puthorities was adopted. It is as follows: 



"Find the difference between black-bulb readings and the corresponding readings of the 

 VioUe actinometer. Interpolate as many means between these differences as there are observa- 

 tion times between the black-bulb readings. Substract or add these means as the case demands 

 to the corresponding VioUe readings to get the black-bulb interpolations. ' 



The method is illustrated by the following table: 



Time. 



Black- 

 bulb. 



VioUe. 



Differ- 

 ence. 



Mean. 



a. m. 



8.00 



9.00 



10.00 



11.00 



12.00 



p. m. 



1.00 



2.00 



8.00 



4.00 



5.00 



°C. 



42.5 



«(48.2) 



(51.7) 



47.7 

 (47.3) 



(50. 9) 

 (50.0) 

 (47.2) 

 (44.4) 

 27.6 



°C. 

 53.0 

 59.0 

 62.7 

 59.0 

 68.5 



62.0 

 61.0 

 60.0 

 59.0 

 44.0 



°C. 

 —10.5 



°C. 



-10. 76 

 -11.02 



-11.2 



-11.1 



i 



-12.8 

 14.6 





-11.3 





-11.0 





-16.4 



• The interpolations are inclosed in parentheses. 



