... Iwould have shirked the loneliness of it, the isolation ofresponsibility... 
John Buchan 「Prester John」
...He was, as I have said, a bright, intelligentyoung Frenchman; but living in the isolation, surrounded by savage,tiresome tribes, the strain of his responsibility had been too muchfor him...
Mary H. Kingsley 「Travels in West Africa」
...The influence of brandy and bad company on him, and the influence of slavery and social isolation upon her, had wrought disastrously upon the characters of both...
Frederick Douglass 「My Bondage and My Freedom」
...It is doubtless closely related to asomewhat similar form found farther north and west, butits isolation from them is complete...
Clarence M. Weed 「Butterflies Worth Knowing」
...Chung Yik Wang stated in 1917 that studies of 281 cases of various clinicalforms of tuberculosis in Edinburgh, Scotland, resulted in the isolation of thebovine tubercle bacilli in 78...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...But it is a fact that as Finnplodded along through the wild bush to the south of Tinnaburra, he began to behaunted by a sense of isolation and friendlessness...
A. J. Dawson 「Finn The Wolfhound」
...This isolation influences local variation among some of the birds found in Coahuila...
Emil K. Urban 「Birds from Coahuila, Mexico」
...The cause of this isolation lies in the unsociable temper of the proprietress...
J. Henri Fabre Alexander Teixeira de Mattos 「The Mason-bees」
...In a general treatise on the subject of territorialism, Nice (1933:98), summarizing Howard, stated: "Territory implies in the male bird isolation, advertisement, fixation, and intolerance...
Glen E. Woolfenden 「Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima」
...In some places in British Columbia differentiationbetween the two kinds had proceeded to such an extentthat some reproductive isolation was effected, but in many otherplaces the two interbred...
James S. Findley 「Speciation of the Wandering Shrew」
...Here the differentiationbetween the Rocky Mountain subspecies and the Great Basinsubspecies was great enough to cause complete reproductive isolation...
James S. Findley 「Speciation of the Wandering Shrew」
...Thus, through geographic isolation populations could have differentiatedand evolved into the present species...
William E. Duellman 「A Review of the Middle American Tree Frogs of the Genus Ptychohyla」
...taylori at Cuatro Ciénegas was preceded by the isolation of a populationin that basin...
John M. Legler 「A New Subspecies of Slider Turtle (Pseudemys scripta) from Coahuila, Mexico」
...This variation in degree of difference possibly results fromvarying periods of isolation...
John M. Legler 「A New Subspecies of Slider Turtle (Pseudemys scripta) from Coahuila, Mexico」
...When animals apply themselves in association to any work, they nearly always exhibit in it a marked superiority over neighbouring species among whom the individuals work in isolation...
Frédéric Houssay 「The Industries of Animals」
...The age of isolation and divergent evolution is passing away, and that of international association and convergent social evolution has begun...
Sidney L. Gulick 「Evolution Of The Japanese, Social And Psychic」
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