...The weather was variable, but the barometer did not fluctuate by suddenmovements, and they could therefore count on tolerable weather... 
Jules Verne William Henry Giles Kingston 「Abandoned」
...As long as easterly winds prevail, all enjoy good health; but in January, February, March, and April, the winds are variable, and sickness is general...
David Livingstone 「Missionary Travels and Researches in South Africa」
... Then the tradewinds, blowing regularly at other seasons, become gradually weaker, and at length cease and give way to variable winds and calms...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 1」
... I lived in the family of Master Hugh, at Baltimore, seven years, during which time—as the almanac makers say of the weather—my condition was variable...
Frederick Douglass 「My Bondage and My Freedom」
... Marvellous! There is in law, and consequently in politics, something variable and something invariable...
P. J. Proudhon 「What is Property?」
...As withthe other members of the family, the eggs areextremely variable in size, but average about4...
Chester A. Reed 「The Bird Book」
...Their nesting habitsare as variable as their plumage...
Chester A. Reed 「The Bird Book」
...Jerdon's descriptionis as follows: "Ground colour variable, usually pale greenish brownor dull clay brown, changing to pale tawny on the lower parts, andlimbs internally, almost white however in some...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...As one would expect, the conditions as to such combinationsare likely to be more variable in southern than innorthern regions...
Clarence M. Weed 「Butterflies Worth Knowing」
...Because of the variable reactions to snakebite, treatment should vary accordingly...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Upper yellowish olive-green; wings, tail brown, tippedwhite; under whitish, streaked black; bill flesh-red;eyes scarlet; variable in color; f...
John Albert Leach 「An Australian Bird Book」
...Bill long and slender; feet slender; wings large and pointed; tail exceedingly variable,often assuming the most striking shapes...
Frank M. Chapman 「Color Key to North American Birds」
...The females in the series are highly variable in colorindividually, but are on the average paler than C...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...The shoulder-stripe, which is so eminently characteristic of the species, is nevertheless variable in breadth, length, and manner of termination...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
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