THE MAMMOTH INCUBATOR AND BROODER 



427 



The Chinese buried the eggs deep in maniu'e to attain the 

 pi-cjper anaount of heat for incubation. 



The giant incubator is constructed in sections, each section 

 being provided with four trays, of about L50 eggs' capacity. 



Each setting of eggs has its own automatic regulator, wliich 

 assures a steady and even temperature, tlius making it possible 



Fig. 160. — A \'iew showinfj; heating arriLiiiieiiioiit of one compartment 



(CandeeJ. 



to have settings at different stages of chii'k development (Figs. 

 159 and 160).^ 



Incubation is primarily a heat problem. In solving it the 

 main consideration in mammoth inculjators is that each differ- 

 ent compartment containing eggs be held at the exact dt'gree 

 of heat required, and yet safeh' protected every instant during 

 the incubating period regardless of the operator or weathei'. 



"Safety first" is of the greatest importance, and when 



