...So far investigators have been unable to identify or isolate the specificorganism causing the disease, although numerous attempts have been made tocultivate and stain it by laboratory methods... 
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Patiently, for weeks, perhaps for months, it digs, clears, andstrengthens a vertical shaft, leaving only a layer of earth a finger'sbreadth in thickness to isolate it from the outer world...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...High mountains and theArkansas River isolate the new subspecies found at Cañon City frompopulations of T...
Phillip M. Youngman 「Geographic Variation in the Pocket Gopher, Thomys bottae, in Colorado」
...That the danger is believed to beespecially great at the first menstruation appears from the unusualprecautions taken to isolate girls at this crisis...
Sir James George Frazer 「The Golden Bough」
...I am merely tryingto show that, considered anthropologically—that is to say, in termsof pure theory—race or breed remains something which we cannot atpresent isolate, though we believe it to be there...
Robert Marett 「Anthropology」
...Of all the possibleoutlines, of all the possible variations oflight and shade that a figure may have, heselected those that we must isolate for specialattention when we are actually realising it...
Bernhard Berenson 「The Florentine Painters of the Renaissance」
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