342 



GENERAL ZOOLOGY 



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Fig. 193. — Structure of the comb of the honeybee, Apis mellifica. a, vertical 

 section at top of comb; b, vertical section showing transition from worker to 

 drone cells; c, horizontal section at side of comb showing end bar of frame; 

 d, horizontal section of worker brood cells; e, diagram showing transition cells. 

 Natural size. (From Phillips, U. S. Dept. Agr., Farmers 1 Bulletin 447.) 



