Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 772
B … Later stages of embryonic Development of Purpura lapil-lus:—A, conglomerate mass of vitelline segments, to whichwere attached the embryoes, a, &, c, d, e:—B, full-size embyro,in more advanced stage of development. cleavage of the infertile eggs coalesces into one mass, as shown ata, Fig. 405;…
Microscopy · Biology
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