56 



Carbon Dioxide in Incubators — Concluded. 



Table XXII. 



Carbon Dioxide — Volumes in 10,000 Volumes of Air- 

 Average Results. 



Hens. 



Earth nest 35.6 



Flat nest 37. 14 



Ventilated nest (hen in incubator) 24.08 



All hens 3 J -93 



Machines. 



Dry, lamp fumes 58.21 



Moisture, lamp fumes ' 55.85 



Moisture, carbon dioxide and zenoleum 55- T 6 



Moisture and carbon dioxide 43-22 



Whole milk 12.12 



Buttermilk 12.03 



Whole milk and zenoleum 11. n 



Moisture only 10.46 



Dr y 9-15 



Moisture and zenoleum 8.29 



W T ater, milk and zenoleum 7.78 



Dry, zenoleum 5-86 



Incubator room 7.00 



