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" Recent investigations. tend to show that, while these changes are taking place, one of the male cells penetrates the protoplasm of the egg and unites with the germinative vesicle, which does not disappear, but divides into two parts, one of which is pushed... "
Maryland, Its Resources, Industries and Institutions: Prepared for the Board ... - Seite 285
von Maryland. Board of World's Fair Managers - 1893 - 504 Seiten
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The Oyster Industry

Ernest Ingersoll - 1881 - 306 Seiten
...investigations tend to show, that while those chan^js are taking place, ona of the male cells penetrates tho protoplasm of the egg and unites with the germinative...of which is pushed out of the egg and becomes the polar globule, while tho other remains behind and becomes the nucleus of the developing egg, but changes...
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The Oyster Industry

Ernest Ingersoll - 1881 - 302 Seiten
...Recent investigations tend to show, that while th'.-so changes are taking place, one of the male colls penetrates the protoplasm of the egg and unites with the germinative vesicle, which docs not disappear, but divides into two parts, one of which is pushed out of the egg and becomes the...
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Annual Report, Band 5

New Jersey. Bureau of Industrial Statistics - 1882 - 468 Seiten
...projecting transparent knob — the polar globule — which is shown in Fig. 3 and in succeeding figures. Recent investigations. tend to show that, while these...of which is pushed out of the egg and becomes the polar globule, while the other remains behind and becomes the nucleus of the developing egg, but changes...
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Handbook of Invertebrate Zoology: For Laboratories and Seaside Work

William Keith Brooks - 1882 - 410 Seiten
...axis at the top of the figure. n. Macromere. 6. Anterior micromere. c. PosFIG. 161. terior micromere. Recent investigations tend to show that while these...of which is pushed out of the egg, and becomes the polar globule, while the other remains behind and becomes the nucleus of the developing egg, but changes...
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Handbook of Invertebrate Zoology: For Laboratories and Seaside Work

William Keith Brooks - 1882 - 442 Seiten
...the top of the figure. a. Macromere. 6. Anterior raicromere. c. PosFIO 161. terior micromere. Kecent investigations tend to show that while these changes...of which is pushed out of the egg, and becomes the polar globule, while the other remains behind and becomes the nucleus of the developing egg, but changes...
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Bulletin of the United States National Museum

United States National Museum - 1884 - 686 Seiten
...projecting transparent knob — the polar globule — which is shown in Fig. 3 and in succeeding figures. " Recent investigations tend to show that while these...penetrates the protoplasm of the egg and unites with the germiuativo vesicle, which does not disappear, but divides into two parts, one of which is pushed out...
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The Oyster: A Popular Summary of a Scientific Study

William Keith Brooks - 1891 - 284 Seiten
...egg, increases in size, and soon forms a little, projecting, transparent knob — the polar globule. Recent investigations tend to show that while these...of which is pushed out of the egg and becomes the polar globule, while the other remains behind and becomes the nucleus of the developing egg, but changes...
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Oysters and Methods of Oyster-culture with Notes on Clam-culture

Henry Frank Moore - 1897 - 128 Seiten
...transparent knob — the polar ylobule — which is shown in plate vu, fig. 3, and in succeeding figures. Recent investigations tend to show that while these...egg and unites with the germinative vesicle, which docs not disappear but divides into two parts, one of which is pushed out of the egg and becomes the...
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A Manual of Fish-culture: Based on the Methods of the United States ...

United States. Bureau of Fisheries - 1900 - 532 Seiten
...transparent knob — the polar globule — which is shown in plate vn, fig. 3, and in succeeding figures. Recent investigations tend to show that while these changes are taking place one of the male colls penetrates the protoplasm of the egg and unites with the germinative vesicle, which docs not...
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Investigations for the Promotion of the Oyster Industry of North Carolina

Caswell Grave - 1904 - 128 Seiten
...transparent knob—the polar globule—which is shown in fig. 3, plate viu, and in succeeding figures. Recent investigations tend to show that while these...of which is pushed out of the egg and becomes the polar globule, while the other remains behind and becomes the nucleus of the developing egg, but changes...
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