...Returning to the bright light, and examining it well, Herbert perceivedon his negative an almost imperceptible little spot on the sea horizon... 
Jules Verne William Henry Giles Kingston 「Abandoned」
...The zinc spoons of the soldiers, the metallic parts of their outfit, the pails of the artillery were all clanking as though in an imperceptible hailstorm...
Vicente Blasco Ibanez Charlotte Brewster Jordan 「The Four Horsemen of the Apocalypse」
... “No, I cannot,” he said, after an almost imperceptible moment of hesitancy; “but we shall see him to-morrow...
Baroness Orczy 「El Dorado」
... But in the lapse of a long series of years, by a progression slow, and for a time almost imperceptible, we had become rich in a variety of acquirements...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
... The decimation of society is now imperceptible and permanent, now periodical and violent; it depends upon the course which property takes...
P. J. Proudhon 「What is Property?」
...Perhaps the effluvia of the gamy tit-bit have reached themfrom afar, imperceptible to any other sense than that of thegrave-diggers...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...No doubt some imperceptible cranny, some defect in the cement, allows her to insert her ovipositor, which shoots out like a probe...
J. Henri Fabre Alexander Teixeira de Mattos 「The Mason-bees」
...The spots on the upper side in the male are sometimes quite imperceptible...
W. S. Coleman 「British Butterfiles」
...However, the fore end is alittle rounder, and contains a small, almost imperceptible bulbous swelling ofthe canal...
Ernst Haeckel 「The Evolution of Man」
...So the perturbing power ofsuch a mass on distant bodies is imperceptible...
Oliver Lodge 「Pioneers of Science」
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