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KANSAS UNIVERSITY SCIENCE BULLETIN, 



In the following cell nests I have taken the serial sections of 

 the same nest and counted them in the same way as I did the 

 single sections of the previously counted nests. I hope in this 

 way to in a manner corroborate my results and also to study 

 the history of the cell nest farther. 



Cell Nest 10. This nest was .4125 mm. in length, .0875 

 mm. in width. It was a nest that showed occasional spots of 

 six to eight cells that had broken down, an average of two of 

 these spots in each nest. The direct divisions occurred largely 

 in the upper, wider end, while the indirect occurred largely in 

 the lower, narrower end, but I have not illustrated this by 

 sketches. It was therefore taken as a nest, non-necrotic, but 

 near the stage when it would rapidly have become so, indicated 

 by the degenerate spots. 



Cell Nest 10, A. 

 Tier. 1 2 8 ^ 5 6 7 8 9 10 11 Av. D.D. I.D. Cells. 



Direct D. . . 1 2 1 2 1 . . 1 . . 5.6 8 



Indirect D. 1 6 2 3 . 2 3.0 . . 14 532 



Cell Nest 10, B. 



Direct D. 1 1 2 5 1 2 4.2 12 



Indirect D. 2 3 3 3 2.6 .. 11 600 



Cell Nest 10, C. 



Direct D. . 3 1 . . 3 3.8 7 



Indirect D. 2 2 . 3 2 3.1 . . 9 557 



Cell Nest 10, D. 



Direct D. . 1 1 3 2 2 1 4.6 10 



Indirect D. 2 3 2 2 2.4 . . 9 655 



Cell Nest 10, E. 



Direct D. . . 3 2 2 1 1 4.4 9 



Indirect D. 1 1 2 1 1 1 3.4 . . 7 654 



Cell Nest 10, F. 



Direct D. . . 4 3 2 2 4.1 11 



Indirect D. 2 2 3 4 . 2 1 3.5 . . 14 650 



Cell Nest 10, G. 



Direct D. . . 1 . . 4 2 5.8 7 



Indirect D. 3 7 2 1 . 1 1 2.6 . . 15 564 



No. of cells. Direct divisions. Indirect divisions. 



4212 64 79 



Percentage of cells in divisions 3.39 



" of cells in direct divisions 1.50 



" of cells in indirect divisions 1.80 



" of divisions which are direct 44 



" of divisions which are indirect 56 



The direct divisions averaged 1.68 rows nearer the center 

 than the indirect divisions. 



