420 LILY HUIE. 
a strong affinity for the red stain. This affinity is markedly 
greater than in the nuclei of the other gland-cells. 
The Nuclear Chromosomes are apparently as in controls. 
The Nuclear Plasm is distributed as in unfed specimens, but 
the granules stain red. The substance which occupies the 
meshes of the reticulum is also red. 
The Nucleolus stains dark crimson. The endonucleoli are 
badly defined. 
Effect of Stimulation for Five Minutes on the Cells 
of the Third Glandular Layer. Fig. 28. 
The Cell Wall and the Cytoplasm resemble those last 
described. 
The Nucleus has become much broader and shorter, and 
shows an intense affinity for the red stain. 
The Nuclear Chromosomes are very distinctly double. They 
stain very dark blue. 
The Nuclear Plasm stains red. It is a very open reticulum, 
composed distinctly of granules strung together in a moniliform 
manner. 
The Nucleolus resembles those of specimens stimulated for 
one minute. 
Effect of Stimulation for Ten to Twenty Minutes 
on the Cells of the Third Glandular Layer. 
Fig, 29. 
The Cell Wall and Cytoplasm resemble those of specimens 
fed for one minute. 
The Nucleus has become still shorter and broader. It 
shows the same affinity for the red stain as the last type. 
The Nuclear Chromosomes have slightly increased in size, 
but in other respects they are like the Nuclear Plasm and 
Nucleolus as in the last type. 
Effect of Stimulation for Twenty Minutes to One 
Hour on the Cells of the Third Glandular 
Layer. Fig. 30. 
The Cell Wall.—The external longitudinal wall stains pale 
blue; the wall next the tracheids dark blue. 
