...It is not till after the impregnation of the nuptial flight that she can produce workers or drones at will... 
Maurice Maeterlinck 「The Life of the Bee」
...Any animal or vegetable egg that had not received the life-giving impregnation would perish in the same way...
J. Henri Fabre 「Bramble-bees and Others」
...His queens, though in hives deprived of males,had been fecundated, and he thence concludes that sexual intercourse isnot requisite for their impregnation...
Francis Huber Anonymous 「New observations on the natural history of bees」
...But they so far correspond with queens whose impregnation hasbeen retarded, that they sometimes lay in royal cells...
Francis Huber Anonymous 「New observations on the natural history of bees」
...In many of the lower animals (such as sponges, polyps, and medusæ) the nakedova retain their original simple appearance until impregnation...
Ernst Haeckel 「The Evolution of Man」
...These arecalled the pore-canals; it is through these that the moving spermatozoapenetrate into the yelk at impregnation...
Ernst Haeckel 「The Evolution of Man」
...This error was partly due to theimperfect knowledge at that time of the facts of impregnation, and partly tothe strikingdifference in the sizes of the two sexual cells...
Ernst Haeckel 「The Evolution of Man」
...These remarkable facts of impregnation are also of the greatestinterest in psychology, especially as regards the theory of the cell-soul,which I consider to be its chief foundation...
Ernst Haeckel 「The Evolution of Man」
...The monistic view of the matter becomes clear enough when we remember theradical importance of impregnation as regards heredity...
Ernst Haeckel 「The Evolution of Man」
...The great importance of the process of impregnation in answering such questionsis quite clear...
Ernst Haeckel 「The Evolution of Man」
...The number of primitive segments increases, and generally amounts tofourteen, some forty-eight to fifty hours after impregnation...
Ernst Haeckel 「The Evolution of Man」
ランダム例文：
Brewster russet tautologies
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