Tlie Early Development of the Pigeon's Egg. 



11 



of the cells of the central area are drawn, however, to show their size 

 in relation to the marginal cells, and the accessory cleavage was just 



^ 



Chart IV. 



as ahnndant on all sides as is represented in the part of the figure 

 completed. The small cells of accessory cleavage were lying one above 

 another in two or in some places three layers (Fig 6). 



