...A denning aggregation of the western cottonmouth... 
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Abovethis aggregation, as over others, hung a lettered sign...
Albert Payson Terhune 「His Dog」
...Anoplura: wingless species without metamorphosis,habits epizoötic, thoracic segments similarly developed: acomposite aggregation which includes both the biting and suckinglice...
John. B. Smith 「Explanation of Terms Used in Entomology」
...During the evening ofJune1, for instance, some 75 Caribou in a loose aggregation werefeeding over the summit of Josie’s Hill, beyond the junction of Windyand South bays...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...Thereafter at intervals, while the whole aggregation drifted deeperinto the jungle, Ellen clung to Manape; depended upon him...
Various 「Astounding Stories, June, 1931」
...Wherever there is asmall aggregation of these minute markings, an impression will be givenof a circular spot, or, to use Prof...
E. Walter Maunder 「Are the Planets Inhabited?」
...This explanation appears all the more probable because one would naturally expect that flocks of meteors would abound in a close aggregation of stars...
Garrett Serviss 「Curiosities of the Sky」
...” Ifthe aggregation be greater still and more extended, we shall have a shadedarea—a “sea...
E. Walter Maunder 「Are the Planets Inhabited?」
...We have already referred to this glorious aggregation ofstars as one of the three especially interesting objects in the heavens...
Robert Stawell Ball 「The Story of the Heavens」
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