PLATE 2 
EXPLANATION OF FIGURES 
17 to 18 Two stages in the anaphase of the first miosis. 
19 to 22 Show different stages and variations in the early telophase of the 
first miotic division. Interzonal fibers are shown stretching between the masses 
of chromatin, the mid-body apparently forming a band around the fibers. 
23 to 25. The second miotic division: stages in the formation of the equato- 
rial plate. 
26 The metaphase of the second miotic division. 
27 Telophase of second mitotic division, showing interzonal fibers and the 
mid-body. 
28 Later telophase. The centrosome is still visible here and is still attached 
by fibers to the nucleus. A clear area also surrounds the nucleus. 
29 to 32 Different stages in the formation of a reticulate nucleus in the 
spermatid. A black granule, the centrosome may be seen and a more or less 
complete zone free from granules around the nucleus. 
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