...Every stimulus which quickens the imagination and raises the spirits,is as necessary to our life as air... 
Emma Goldman 「Anarchism and Other Essays」
...However, retention of spermatozoa and delayed fertilization indicate that copulation is not a stimulus for ovulation...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...We cannot give quite enough meatto afford this stimulus constantly, because by doing sowe should overload the system...
Mrs. Leslie Williams 「A Manual of Toy Dogs」
...A muscle can not contract withoutreceiving the stimulus from the nervous system...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Under the stimulus of a straw, I see her legs move a little, especially the lower joints, the tibiae and tarsi...
J. Henri Fabre 「More Hunting Wasps」
...If aroused by the stimulus of necessity, this aptitude will pass suddenly from inaction to action...
J. Henri Fabre 「Bramble-bees and Others」
...All, coming and going from the cells to the bottom of the shaft and from the shaft to the cells, will take part in the clearing, under the stimulus of the approaching deliverance...
J. Henri Fabre 「Bramble-bees and Others」
...The stimulus of the water does not at once set inmotion his legs and arms in the right way, as it doesthe animal's legs; his powers of reason and reflectionparalyze him—his brain carries him down...
John Burroughs 「Ways of Nature」
...Nearly everything an animal does is the result ofan inborn instinct acted upon by an outward stimulus...
John Burroughs 「Ways of Nature」
...Hence the strong attractionwhich magic and science alike have exercised on the human mind;hence the powerful stimulus that both have given to the pursuit ofknowledge...
Sir James George Frazer 「The Golden Bough」
...But even this nobler public sentiment was aroused by the Occidental stimulus...
Sidney L. Gulick 「Evolution Of The Japanese, Social And Psychic」
...They felt the stimulus in many directions...
Sidney L. Gulick 「Evolution Of The Japanese, Social And Psychic」
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