. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. H. Fig. F.— Polar view, metaphase of spermatogonium in Hippiscus tuberculatus showing autosome pairs. X 1450. Fig. G.— Polar view, metaphase of spermatogonium of Melanoplus femoratus showing autosome pairs. X 1450. Figs. Ha, Hb.— Successive sections of oogonium of Hippiscus tuberculatus during prophase showing autosome pairs. X 1450. which are much smaller than the rest. Figures Ha and Hb represent two successive sections of an oogonium of this species in the late pro- phase. Here there are plainly twenty-fou

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. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. H. Fig. F.— Polar view, metaphase of spermatogonium in Hippiscus tuberculatus showing autosome pairs. X 1450. Fig. G.— Polar view, metaphase of spermatogonium of Melanoplus femoratus showing autosome pairs. X 1450. Figs. Ha, Hb.— Successive sections of oogonium of Hippiscus tuberculatus during prophase showing autosome pairs. X 1450. which are much smaller than the rest. Figures Ha and Hb represent two successive sections of an oogonium of this species in the late pro- phase. Here there are plainly twenty-four chromosomes, all of which can be readily arranged in twelve pairs. A comparison of these with Figure F will show that these pairs correspond exactly with those of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum

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Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology