PLATE 8 
EXPLANATION OF FIGURES 
CEREBRATULUS 
47 Centrifuged at 2 pronuclei stage. 
48 Centrifuged at 2 pronuclei stage. 
49 Centrifuged at 2 pronuclei stage. 
50 Centrifuged at 2 pronuclei stage. 
51 Centrifuged at 2 pronuclei stage. 
52 Centrifuged at 2 pronuclei stage. 
53 Centrifuged at 2 pronuclei stage. 
54 Centrifuged at 2 pronuclei stage. 
55 Delayed polar spindle; chromosomes divided. 
56 Ditto one polar aster divided. 
57 Ditto one polar aster divided. 
58 Delayed polar spindle with large number of chromosomes, but with small 
polar asters. 
