96 E. L. SHAFFER. 



indicated by the fact that they" become more dense and assume 

 a definite arrangement about a number of cells." This is exactly 

 the behavior of the spindle remains which Hegner 1 has described 

 in Leptinotarsa and which I have described in Passalus. 2 It is 

 difficult to see how these "fibrillar bridges" are concerned in 

 dividing the syncytia into a number of cysts. Furthermore, 

 it is difficult to believe that a true syncytium of spermatogonia 

 actually does exist, for the later stages certainly do possess 

 cell-walls which must have been preexisting. 



LITERATURE CITED. 

 Arnold, G. 



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Conklin, E. G. 

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1 Studies on the Germ Cells, I and II. Jour. Morph., Vol. 25, No. 3, 1914. 



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