ARTIFICIAL BROODING 

 Fio. 117 



237 



Showing heating and ventilating system of an adaptable hover. 1, 

 heater box; 2, direct heat flue; 3, connecting direct heat flue and radiating 

 drum; 4, radiating drum; 5, fume escape flue; 6, wind shield; 7, heater box 

 ventilating shaft; 8 and 9, fresh-air flues; 10, connecting fresh-air flue and 

 hover chamber; 11, hover chamber; 12, hover curtain; 13, screen protector; 

 14, non-spilling gas escape. (Courtesy of Cyphers Incubator Company.) 



Fig. 118 



Showing method of conducting fumes out-of-doors from a portable hover. 

 (Courtesy of Cyphers Incubator Company.) 



