Knowledge. 



(L„..,..„,.,... 



No. 3.— Hiud Foot of Worker Bee, showing the ridged planfa, with its auricle 



and comb. 



Jfo. 4.— Junction of tibia and planta on Worker Bee's Hind Leg, more highly j^q_ 5 — nind Foot of Queen Bee, showing absence of auricle and comb, 



magnified, showing aui'icle and comb. 



The above are reproduced from Photographs taken by Dr. E. J. Spitta. 



