 | 1854 - Страниц: 492
...ART. VII. — Researches on the Development of Viviparous Aphides ; by WALDO I. BURNETT, MD, Boston. EVERY naturalist is aware of the remarkable phenomena...is composed being like those of the first, sexless, oral least without any trace of the male sex throughout. These same conditions are then repeated, and... | |
 | 1854 - Страниц: 408
...Wootton, June, 1854. Researches on the Development of Viviparous Aphides. By WALDO T. BURNETT, MD* EVEKY naturalist is aware of the remarkable phenomena connected...of the male sex throughout. These same conditions 4488 Insects. • are then repeated, and so on almost indefinitely, experiments having shown that this... | |
 | John William Douglas - 1856 - Страниц: 266
...question young lice, which, when capable of entering upon individual life, escape from their progenitors, and form a new and greatly increased colony. This...almost indefinitely, experiments having shown that the power of reproduction under such circumstances may be exercised, according to Bonnet, at least... | |
 | Maine - 1862 - Страниц: 462
...from their progenitors, and form m new and greatly increased colony. This second generation persues the same course as the first, the individuals of which...almost indefinitely, experiments having shown that the power of reproduction under such circumstances may be exercised, according to Bonnet, at least... | |
 | Alpheus Spring Packard - 1863 - Страниц: 79
...from their progenitors, and form a new and greatly increased colony. This second generation persues the same course as the first, the individuals of which...and so on almost indefinitely, experiments having •hown that the power of reproduction under such circumstances may be exercised, according to Bonnet,... | |
 | Alpheus Spring Packard - 1870 - Страниц: 756
...question, young lice, which, when capable of entering upon individual life, escape from their progenitors, and form a new and greatly increased colony. This...almost indefinitely, experiments having shown that the power of reproduction under such circumstances may be exercised, according to Bonnet, .at least... | |
 | Alpheus Spring Packard - 1872 - Страниц: 820
...question, young lice, which, when capable of entering upon individual life, escape from their progenitors, and form a new and greatly increased colony. This...of the male sex throughout. These same conditions arc then repeated, and so on almost indefinitely, experiments having shown that the power of reproduction... | |
 | Alpheus Spring Packard - 1876 - Страниц: 772
...upon individual life, escape from their progenitors, and form a new and greatly increased colon}'. This second generation pursues the same course as...almost indefinitely, experiments having shown that the power of reproduction under such circumstances may be exercised, according to Bonnet, at least... | |
 | Northern Wisconsin Agricultural and Mechanical Association - 1877 - Страниц: 244
...question, young lice, which, when capable of entering upon individual life, escape their progenitors and form a new and greatly increased colony. This...which it is composed being like those of the first, or at least without any trace of the male sex throughout. The same conditions are then repeated, and... | |
 | Maine. Board of Agriculture - 1862 - Страниц: 690
...colony. This second generation per•ues the same course as the first, the individuals of which it i& composed being, like those of the first, sexless,...almost indefinitely, experiments having shown that the power of reproduction under such circumstances may be exercised, according to. Bonnet, at least... | |
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... and form a new and greatly increased colony. This second generation pursues the same course as the first, the individuals of which it is composed being, like those of the first, sexless, or at least without any trace of the male sex throughout. These... 
