Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 916
Fig. 653—Embryonic development of Doris Ulamellata : A, ovum, consist-ing of enveloping membrane, a, and yolk, b; B, C, D, E, F, successivestages of segmentation of yolk ; G, first marking out of the shape of theembryo ; H, embryo on the eighth day ; I, the same on the ninth day ; K, thesame on the…
Microscopy
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