PLATE 6 



EXPLANATION OF FIGURES 



All the figures on this plate are from parthenogenetic eggs. 



58 Resting nuclei enlarging. 



59 Resting nuclei fusing. 



60 Cleavage nucleus. 



61 Cleavage nucleus. Chromatin condensing. 



62 Cleavage nucleus. Chromatin in threads. 



63 to 65 Chromosomes of the first cleavage from eggs without polar bodies. 

 Magnification, 2600 diameters. 



46 



