KARYOKINETIC FIGURES OF CENTR1FUGED EGGS. 



I I I 



A single example of this kind would not be convincing in 

 itself, for it might be maintained that the egg in question deviated 

 originally from the norm of the control eggs. But when such a 









FIG. 6. Section of an egg of Chatopterus centrifuged 7,800 revolutions in one 

 minute at a radius of 6 cm. The egg was killed in Flemming's fluid, and the fat 

 granules of the gray cap are stained black. The spindle blocks fat granules passing 

 in a centripetal direction ( /"). I-I, primary axis of the egg ; 2-2, secondary axis ; 

 ec., ectoplasmic spherules; en., endoplasmic spherules; _/"., fat granules blocked by 

 the spindle; g.c., gray cap ; h.b., hyaline band. 



Condition is found to be the type of hundreds of eggs in different 

 experiments with no considerable deviations, as is the case in my 



