194 HOME STUDIES IN NATURE. 



inner surface of the hood. The peculiar smoothness 

 does not extend over the bright colors, and here a fly 

 can easily walk. 



Under the microscope, the two colors on the inner 



FIG. 20. — HAIRS OK ABSOIIBING GLANDS FOUND IN THE LOWER HALF OF TUBE. 



surface of the leaf present a marked difference; the 

 lower part of the tube seems to be a true stomach. 

 Long hairs (Fig. 20), all pointing downward, are scattered 

 thickly over the surface. If a leaf has caught no prey, 



