LEG OF HONEY BEE 87 



of the apparatus known as the bee's tongue 

 and its adjuncts, and the enormous amount 

 of work it does for man, one is appalled at 

 its minuteness, its complexity, and- its ex- 

 cellence. 



The photo-micrograph from which the illus- 

 tration (Fig. 22) was taken shows the object 

 amplified to 36 diameters; the focal distance 

 was 72 inches ; the time of exposure to 

 gas-light two minutes, and the objective used 

 was the 2 inch. 



Leg of Honey Bee. 



(Apis mellifica.) 



The hind legs of these indefatigable creatures 

 are used as implements in their daily work. 

 There is a series of modifications in the hind 

 legs of the male, queen, and worker, so that 

 all are different. Those of the worker are 

 modified more highly to adapt them to their 

 industrial occupations. This fact in Nature 

 always arouses the keen interest of naturalists, 

 in consequence of the difficulty that exists in 

 connection with the creature's heredity, for 



