PLATE 4 



EXPLANATION OF FIGURES 



38 to 53 First spermatocyte equatorial plates 



38 Chromosomes massed with projecting arms. 



39 Chromosomes loosely massed with space in center. 



40 Chromosomes scattered, but still all connected. 



41 Chromosomes massed, with a F-shaped body partially separated to the 

 right. 



42 Chromosomes massed, with a three-parted body partially separated to the 

 right. 



43 Three-parted separate body, one-third the size of the whole chromosome. 



44 Three-parted separate body, small in proportion to size of whole chromo- 

 some plate. 



4.5 Four-parted separate chromatin body to the right. 



46 F-shaped separate chromatin body to right. 



47 F-shaped separate chromatin body at lower side. 



48 Two separate chromosomes, one round and one F-shaped. 



49 Two separate chromosomes, one small round one and one rod-shaped. 



50 One round chromosome somewhat separated from the rest. The number 

 of chromosomes here might be counted as nine. 



51 One small round separate chromosome to the right. 



52 Two rod shaped chromosomes, one separate and one attached. 



53 Similar to 52, but rods shorter. 



78 



