580 



GEORGE H. BISHOP 



Stage B-C, In figure B, the distinctive elements brought out 

 by staining are as follows : in the cytoplasm typically one large 

 fat-globule, and generally several smaller ones, showing after 

 alcoholic extraction as clear spaces in a homogeneous, non- 



Text fig. B Larval fat-tissue cell, stage B, shortly after hatching, characterized 

 by one large fat-vacuole, which may distort the nucleus. 



Text fig. C Larval fat-tissue cell, stage C — rapid cell-growth period, the usual 

 larval appearance — characterized by a peripheral ring of fat-vacuoles, central 

 densely staining cytoplasmic area, and densely granular nucleus. 



Text fig. D Larval fat-tissue cell, stage D — larva just becoming quiescent, 

 dispersion of nuclear granules into the cytoplasm — characterized by a central 

 ring of fat-vacuoles indenting the nuclear vesicle, by loss of the nuclear membrane, 

 and by dispersal of the nuclear granules. 



granular, or finely granular, rather heavily staining matrix ; and in 

 the nucleus, many large chromatic granules in a clear, lightly 

 staining nuclear sap, with smaller granules and a very lightly 

 staining linin network between them, the whole enclosed by a 



