What Puts “Pop” in Pop Corn. 265 
Photomicrograph I showing germ and nucleus also starch grains of the unpopped 
corn. X 50 by Dr. E. G. Mahin. 
Photomicrograph 4.—Showing starch grains in unpopped corn, as white dots and 
the cell walls as black circles. X 100 by Dr. EB. G. Mahin, 
