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42. Castle, W. E. — On the Cell Lineage of the Ascidian Egg. A Preliminary Notice. 



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43. Weysse, a. W. — On the Blastodermic Vesicle of Sus scrofa domesticus. P. A. A. 



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44. Wilcox, E. V. — Spermatogenesis of Caloptcnus fomur-rubrum. Preliminaiy 



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