Stomach-Mouth of Worker Bees. 119 
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. 41) and as Schie- 
menz shows, open to let food pass to the true stomach, 
This same author tells us how by pressing with a needle 
Fic. 41. 
Four pleces forming Stomach-Mouth, after Schiemens, 
e Cells. T m Transverse muscles, #Hs Longitudinal muscles, 
while viewing the stomach-mouth under a microscope, we 
can see the jaws open and shut. These plates have fine 
hairs, pointing down (Fig. 40, 2), which would, if a por- 
tion 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. As 
will be seen, this stomach-mouth has not only great longi- 
tudinal muscles, (Fig. 40, 7), but also circular muscles as 
well (Fig. 40, m'). If Schiemenz is correct, then_ this 
stomach-mouth is to separate the honey and pollen. Even 
with this interesting 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 Schiemenz’s view all the more 
probable. 
There is also a long prolongation (Fig. 40, v) from the 
stomach-mouth into the true stomach. This is .o4 of an 
