144 THE bee-keeper's GUIDE: 



unaided eye, and as Schonfeld suggests, is easily studied with 

 a low- power microscope. There are four jaw-like plates which 

 guard this stomach-mouth (Fig. 63), and as Schimenz shows, 

 open to let food pass to the true stomach. This same author 

 tells us how by pressing with a needle, while viewing the 

 stomach-mouth under a microscope, we can see the jaws open 

 and shut. These plates have fine hairs, pointing down (Fig. 

 62, h), which would, if a portion of the honey-containing pollen 

 were taken by this very muscular stomach-mouth, retain the 

 pollen-grains, while the honey could be passed back into the 

 honey-stomach. Hence, Schiemenz very naturally concludes 

 that this is a sort of strainer, constantly separating the pollen 

 and honey as the bee is sipping nectar from flower to flower. 



Fig. 64. 



atomach-mouth in Honey- Stomach, after Cowan. 



A Normal. a (Esophagus. d Vales. 



B Raised in regurgitation. b Honey-stomach. e True stomach. 



As will be seen, this stomach-mouth has not only great longi- 

 tudinal muscles (Fig. 62, m), but also circular muscles as well 

 (Fig. 62, m). If Schiemenz is correct, then this stomach-mouth 

 is to separate the honey and pollen. Even with this interest- 

 ing apparatus, much of our honey has not a few pollen-grains, 

 as every observing bee-keeper knows. The fact that nectar 

 has much more pollen in it than does honey, makes Schie- 

 menz's view all the more probable. 



There is also a long prolongation (Fig. 62, v) from the 

 stomach-mouth into the true stomach. This is .04 of an inch 

 long, and is rich in cells, which are held by a very delicate 



