. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. • • • 7. All the figures were drawn with the camera at the level of table and with Zeiss apochromat oil immersion objective and No. 18 compensating eye-piece, which combination gives an enlargement cf 48CO diameters.—Fig. I, metaphase of spermatogonial division in the domesticated silkworm (" Shirojima " x" Kurojima ") ; polar view.—Figs. 2 and 3, equatorial plates of first sperm atocyte-division in the wild silkworm (27 chromo- somes).—Fig. 4, second spermatccyte-division in same (27 chromosomes).—Fig.
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. • • • 7. All the figures were drawn with the camera at the level of table and with Zeiss apochromat oil immersion objective and No. 18 compensating eye-piece, which combination gives an enlargement cf 48CO diameters.—Fig. I, metaphase of spermatogonial division in the domesticated silkworm (" Shirojima " x" Kurojima ") ; polar view.—Figs. 2 and 3, equatorial plates of first sperm atocyte-division in the wild silkworm (27 chromo- somes).—Fig. 4, second spermatccyte-division in same (27 chromosomes).—Fig. 5, first division in the domesticated silkworm, race " Italian No. 1 " (28 chromosomes).—Fig. 6, same, race " ;—Fig. 7, second division in same, race '• Birö;—Fig. 8, same, race " Kasa- sagi " ; side 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 Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas
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Keywords: ., bookcentury1800, bookcollectionbiod, bookdecade1890, bookyear1897
