XV 111 
Illustrations 
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Tool-box seat. 
Alley queen and drone trap * 
Bee escape board *. 
Comb-foundation cutter. 
Van Deusen hive clamp. 
The honeybee: worker, queen and drone* 
* • . 
The honeybee : egg, young larva, old larva and pupa * 
Structure of comb *. 
l’iece of new comb showing transition cells* 
Queen cell. 
Cappings of brood. 
Capping of honey. 
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Colony in the open air. 
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Eggs in cells of the comb. 
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Larvae in cells of the comb, almost full grown . 
Concentric arrangement of the brood . 
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Group of queen cells*. 
A swarm cluster. 
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Swarm catcher. 
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Capturing a swarm. 
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Swarm entering a hive. 
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Group of tissue cells from skin of young salamander. (From 
Nelson). 
Three stages in the development of the embryo. (From Nelson) 
Diagram of a longitudinal median section of a bee larva. (From 
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Nelson).100 
Ventral plates of the abdomen of a worker bee. (From Casteel) 108 
Inner surface of the left hind leg of a worker bee showing a wax- 
scale. (From Casteel) . . . . . ' . . 108 
Ventral view of worker removing wax-scale. (From Casteel) . 109 
Side view of worker removing wax-scale. (From Casteel ) . 109 
Ventral view of worker passing wax-scale forward. (From 
Casteel).110 
Side view of worker passing wax-scale forward. (From Casteel). 110 
Median longitudinal section of head of worker, showing the 
glands. (From Snodgrass).Ill 
Alimentary canal of worker, showing glands. (From Snod¬ 
grass) .112 
Longitudinal median section of base of oesophagus. (From 
Snodgrass).113 
