...These repeated acts nearly stopped the trade, and the manumissionor sale of Negroes by the Friends decreased thenumber of slaves in the province... 
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...As the gale slightly decreased, more sail was made, and before morning the “Vulture” had as much canvas packed on her as she could carry...
W.H.G. Kingston 「The Two Supercargoes」
...Theone in this case not only decreased in numbers and failed to addanything to the economic value of his country, but has actually provena charge upon the state...
Booker T. Washington 「The Negro in the South」
...Mackaystated that this bird and the golden plover had decreased 90 percent in fifty years, and in the last ten years of that period 90 percent of the remainder had gone...
William T. Hornaday 「Our Vanishing Wild Life」
...Ruffedgrouse greatly decreased during the past 10 years...
William T. Hornaday 「Our Vanishing Wild Life」
...During the fifteen years preceding the year1898, the bird life of that state had decreased 75 per cent...
William T. Hornaday 「Our Vanishing Wild Life」
...During the fifteen years preceding1898, the general bird life of Florida decreased in volume 77 percent...
William T. Hornaday 「Our Vanishing Wild Life」
...Though they have decreased innumbers, the decrease is by no means as greatas of the blacktail, and a good many can beshot yet...
Various 「Hunting in Many Lands」
...Activity of the cottontail decreased as precipitation increased; there was less activity in rain than in snow and less activity in wet snow than in dry snow...
Donald W. Janes 「Home Range and Movements of the Eastern Cottontail in Kansas」
...much decreased innumbers...
Frank M. Chapman 「What Bird is That?」
...The supply of fine wool, then, proportionably decreased, and that ofmedium and coarse increased...
Robert Jennings 「Sheep, Swine, and Poultry」
...7 per cent) in October, justafter sowing, it steadily decreased, varying from 6...
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
...Both species decreased in abundance during a period of continuousflow (1957 to 1959) following drought at the upper Neosho station...
James Everett Deacon 「Fish Populations, Following a Drought, in the Neosho and Marais des Cygnes Rivers of Kansas」
...In streams heading in the hilly area of western Elk County, the relativeabundance of Notropis boops decreased progressively downstream...
Artie L. Metcalf 「Fishes of Chautauqua, Cowley and Elk Counties, Kansas」
...A watershed improvement program effecting more stable flow and decreased turbidity might benefit this shiner...
James E. Deacon 「Fishes of the Wakarusa River in Kansas」
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