...The depressions were filled with jungle of more or less density, while here and there opened glades, shadowed even during noon by thin groves of towering trees... 
Henry M. Stanley 「How I Found Livingstone」
...The jungles increased in density, and the grasses became enormously tall; these points reminded us of the maritime districts of Ukwere and Ukami...
Henry M. Stanley 「How I Found Livingstone」
...Thehair on the body is quite luxuriant, both in length and density, in bothrespects quite equaling, if not even surpassing, that of the finestadults...
William T. Hornaday 「The Extermination of the American Bison」
...Moredifficulties, however, were encountered in the States of New York and NewJersey, on account of the larger territory infected and the density of thepopulation...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...It was a night wherein a hundred searchlights and a million star-flareswould not have made more impression on the density of the fog thanwould the striking of a safety match...
Albert Payson Terhune 「Bruce」
...As the germ grows, the contents of the egg becomeclouded and dense, and the air space at the large end of the egg isclearly defined, the density being greatest near it...
John H. Robinson 「Our Domestic Birds」
...Riparian woodland does not seem to affordfirst-rate habitat for most of the eastern woodland species that dooccur; breeding density seems to be much lower than in well-situatedeastern woodland...
Richard F. Johnston 「The Breeding Birds of Kansas」
...Most records of breeding comefrom east of the Flint Hills, but it is not certain that the fewrecords from the west actually reflect a low density of Marsh Hawks inthat area...
Richard F. Johnston 「The Breeding Birds of Kansas」
...A process of selection results from variations in density, andhere and there we see foam white as snow resting on the dirty foam fromwhich it is produced...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...The average density of the sheath is of no importance, so long as the burden to be dragged is not beyond the animal's strength...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...2) The density of bristles on the plates—sei whaleshave from 35 to 60 baleen fringes per centimeter; all otherrorquals have far fewer (less than 35)...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...This indicatesthat the population density from 1967 to1969 may have been higher than from 1948 to1953...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...As compared with wooded bottomland of larger stream courses inDouglas County and those counties adjoining it, the Reservationarea probably supports a relatively low population density of opossums...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...In these mice, as in other microtines (Elton,1942; Piper, 1909), there are seasonal, and irregularly multiannualfluctuations in population density, which sometimes are extreme...
Sydney Anderson 「Subspeciation in the Meadow Mouse, Microtus montanus, in Wyoming and Colorado」
...41 turtles per acre and for the pasture alone,density was 1...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...Acreage and population density in the northwestcorner, house pond, and southern ravine areas were respectively, 28acres with 2...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
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