99 



Fig. 77. Transverse section through, second abdominal 

 segment on one side of the body of the male, 

 at the stage prior to that seen in fig. 72 fafter 

 Claypole, reduced). 



Fig. 78. Transverse section showing early mesoderm 

 formation (after Claypole, reduced). 



Fig. 79. Diagrammatic figure showing Nematodes in 

 the testis. x circa 100. 



Fig. 80. a, Embryo of Nematode; h, the same in 

 transverse section. x 200. 



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