...The climate there, however, is warmer than at Linyanti, and the Makalaka increase the fertility of their gardens by rude attempts at artificial irrigation... 
David Livingstone 「Missionary Travels and Researches in South Africa」
... The valley of the Ungerengeri with Muhalleh exhibits wonderful fertility...
Henry M. Stanley 「How I Found Livingstone」
...But I thought that the view opening before us was much more agreeable than the valley of Simbamwenni with all its indescribable fertility...
Henry M. Stanley 「How I Found Livingstone」
...This is because of its persistence and fertility...
William T. Hornaday 「Our Vanishing Wild Life」
...Baring declares that neither he nor his gamekeeper have everbeen able to discover any deterioration in the deer of Lambay,either in size, weight, size of antlers, fertility or generalphysical stamina...
William T. Hornaday 「Our Vanishing Wild Life」
...The fertility varies with the seasonthat is, with the weather...
Harry M. Lamon 「Ducks and Geese」
...But, as Broca has well remarked, the fertility of successive generations of mongrel dogs has never been scrutinised with that care which is thought indispensable when species are crossed...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...Whether domestic cats have descended from several distinct species, or have only been modified by occasional crosses, their fertility, as far as is known, is unimpaired...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
..., the fact of their perfect, or even increased, fertility when intercrossed in the most complicated manner becomes a strong argument in favour of their having all descended from a single species...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...One word more as to the fertility of the Sisyphus...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...This sentiment, which assumes the appearance of so livelyan affection, is probably the effect of some agreeable sensationcommunicated to bees by theirqueen, independent of fertility...
Francis Huber Anonymous 「New observations on the natural history of bees」
...The Malays cultivate the tree for the sake of its fruit, and havebeen known to resort to a peculiar ceremony for the purpose ofstimulating its fertility...
Sir James George Frazer 「The Golden Bough」
...It would be unjust to treat these orgies as a mereoutburst of unbridled passion; no doubt they are deliberately andsolemnly organised as essential to the fertility of the earth andthe welfare of man...
Sir James George Frazer 「The Golden Bough」
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