...The 35,000 elk that summer in the Park are compelled in winter tomigrate to lower altitudes in order to find grass that is not undertwo feet of snow...
William T. Hornaday 「Our Vanishing Wild Life」
...Jerdon supposesthat it is found at great altitudes, from Hodgson having in anotherplace described it (MSS...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...dilatus appears to be completely allopatric in that it occurs athigher altitudes (above 2000 meters), whereas the other three occurbelow 1800 meters in the region (Davis and Dixon, 1965)...
John D. Lynch 「A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope」
...There are a number of species, growing at altitudes from4,000 feet to timber line, and all are poisonous...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...This species begins itsmigrations early in the spring, keeping close to thesnow line until they reach altitudes as high as 7000 to8000 feet, where they nest and rear their young...
Harry Thom Payne 「Game Birds and Game Fishes of the Pacific Coast」
...Thetopography varies from large stretches of swampsto rocky ridges, with altitudes ranging from 1,000to 2,300 feet above sea level ()...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...Southern pygmy mice at high altitudes average larger than thosefrom low elevations, except where the two species are sympatric...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...Specimens from higher altitudes average somewhat darker andlarger in external and cranial size than those at lower elevations...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...When morespecimens are obtained from the front range of the Sierra MadreOriental, at lower altitudes, the manner in which these two subspeciesintergrade with one another will be better understood...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...Thesespikes attain altitudes not generally greater than 20,000 miles, thoughsometimes they soar aloft to stupendous distances...
Robert Stawell Ball 「The Story of the Heavens」
...In the eruptiveprominences glowing masses of gas are shot up to altitudes sometimes ashigh as 300,000 miles, with velocities even so great as from 500 to600 miles a second...
Cecil G. Dolmage 「Astronomy of To-day」
...The plumb-line apparatus described at is shownin slightly modified, so as to adapt it to measuringthe altitudes of stars...
George C. Comstock 「A Text-Book of Astronomy」
...Such a publication would have been of no use to the navigatorbefore he had instruments with which to measure the altitudes of theheavenly bodies...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...Waltherus, of that town, made really accurate observations of star altitudes,and of the distances between stars; and in 1484 A...
George Forbes 「History of Astronomy」
...By this contrivance the telescope can be raised orlowered, and an ingenious system of counterpoises renders the movementequally easy at all altitudes...
Robert Stawell Ball 「The Story of the Heavens」
...By measurements of thiskind the altitudes of other lunar objects, such, for example, as theheight of the rampart surrounding a circular-walled plane, can bedetermined...
Robert Stawell Ball 「The Story of the Heavens」
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