PLATE 13 
EXPLANATION OF FIGURES 
103 Larval spermatoc3^te in early stages of degeneration. Tetrads condens- 
ing or running together. 
104 and 105 Further stages in spermatocyte degeneration. 
1C6 to 108 End stages of degeneration of larval spermatocytes. The type 
of cell depicted in figures 106 and 108 sometimes show long axial filaments as out- 
growths of the centrosome. The black balls are the remains of the tetrads. 
109 and 110 Stages in the degeneration of the larval spermatocytes of the first 
sexual cycle. Note in figure 109 the condensed group of vacuoles in the large 
clear area. The clear area represents the original size of the cell; the vacuoles 
are the remains of the tetrads that went to pieces in situ on the first maturation 
spindle. 
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