160 STORRS AGRICULTURAL EXPERIMENT STATION 
RABBLE RIN Oe: 
Parts by weight of carbon dioxide in 10,000 parts of atr. 






Hens A B | Cx Barn 
July 5 37.9 NERA 12.0 er 
July 11 2 tw 27.5 iis 3.6 
july 13 10.8 9:0 7.2 3.6 
July 15 22.0 14.7 9.93 3.6 
July 17 40.6 12.9 5.9 5.5 
July 19 46.0 9.3 5.6 it 
July 22 66.5 38.8 9.2 5.9 
July 24 54.8 32.8: —=O.4 a 
July: 26 80.1 46.7. 11:2 3.6 



the time consumed being as near 15 minutes as it was possi- 
ble to adjust the apparatus to this rate of flow. 
Hen A had a nest made of earth covered with a thin layer 
of hay, while the other two hens had a nest of hay. Hen A 
TABLE No. 4. 
Parts by weight of carbon dioxide in 10,000 parts of air. 





Incubator No. 11 18 19 Cellar Air 
Rem. -27 4.8 a a AS 
Feb. 28 9.6 9.6 —_—— 11.8 
March 1 Sur aa — —— 
March 2 10.38 1025 —— —— 
March 4 lige Ore ——-— 5.8 
March 5 LOS 7 Tames a 8.8 
March 6 13 9.5 aa Se 
March 7 14-7 10.8 Cehes' 6.8 
March 8 18.6 14.5 SLE oa 
March 9 1oe5 1545 Ta Saa 
March 10 16.8 AEDES 8.7 ray 
March 11 PAS in 18.3 12F5 Se 7. 
March 12 Dt py 21k ‘Ss 16.5 a Set a" 
March 13 26.9 AW ees 20.0 9.5 
March 14 59 hee Bole 20.6 18.6 
March 15 Ze 2122 Pee 8.2 
March ‘16 29.5 21.9 Leak Tie 
March 17 2paG weed 19.2 9.2 
March 18 eae hie, Oe 18.4 ea 
March 19 28.0 ERY: +s er & 



