DIGESTIVE SYSTEM. 



65 



a microscope to examine them. Let us now investi- 

 gate in detail the stomach-mouth and chyle stomach.' 



TM '■ ' 



Fig. 14.— Hoxey Sac Stopper, or Stomach-Mouth, &c. (Magnified Fifty times). 



A, Front View of One of the Four Leaflets of Stopper, or Stomach-Mouth— 

 I, Lip-like Point, covered by Down-turned Bristles (6) ; sm, Side Membrane. 

 B, Longitudinal Section of Stomach-Mouth, with Continuations into Entrance 

 of Chyle Stomach— I, I, Lip-like Ends of Leaflets; s, Setse; hn, Longitudinal 

 Muscles ; tm, Transverse Muscles, in Cross Section ; cl, Cell Layer of Honey 

 Sac ; LM and TM, Longitudinal and Transverse Muscles of same ; nc, 

 Nucleated Cells of Tubular Extension of Stomach-Mouth into Chyle 

 Stomach ; Iml and tm', Longitudinal and Transverse Muscles of Chyle 

 Stomach ; c, c, Cells covered within by an Intima. C, Cross Section of 

 Stomach-Mouth — m, Cross Section of Muscles seen at Im in B; tm, Trans- 

 verse Muscles surrounding Stomach-Mouth. D, Cross Section through Small 

 Intestine— a and m, Longitudinal and Surrounding Muscles. 



We have already learnt that the first of these 

 enables the bee to store honey, which, although 



G 



