...There is great discrepancy in the various estimates as to the number of slaves annually exported from Africa... 
Horatio Bridge 「Journal of an African Cruiser」
...The subsequent slaughter proved that these estimates wereprobably not far from the truth...
William T. Hornaday 「The Extermination of the American Bison」
...After twenty-five years ofunbroken protection in Colorado, Dillon Wallace estimates, after aninvestigation on the ground, that the state possesses perhapsthirty-five hundred head...
William T. Hornaday 「Our Vanishing Wild Life」
...Avare estimates the prong-horned antelope in Montana at threethousand head, of which about six hundred are under thequasi-protection of four ranches...
William T. Hornaday 「Our Vanishing Wild Life」
...Extravagant estimates are recorded of the height of theelephant...
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...Don Romaldo Baca estimates that between five hundredthousand and eight hundred thousand are annually pasturedhere—about two-thirds of which are driven in from othersections...
W. E. Webb 「Buffalo Land」
...These estimates are very conservative for it is ourintention in this book to give the beginner only the facts on which hemay rely...
Carl Dare 「Profitable Squab Breeding」
...Leuckart estimates at twenty-five millions, are preserved alive in a special gland known as the spermatheca, that is situate under the ovaries, at the entrance to the common oviduct...
Maurice Maeterlinck 「The Life of the Bee」
...For comparison with the estimates of total population, the percentage-compositionin the first collection gives the following results: red shiner(24...
James Everett Deacon 「Fish Populations, Following a Drought, in the Neosho and Marais des Cygnes Rivers of Kansas」
...Miss Richards estimates that in the years of school work, she has had inher room an average of fifty pupils a term, although sometimes theattendance overflowed to a much greater number...
Various 「The Journal of Negro History, Vol. I. Jan. 1916」
...Its distance from theearth is estimated roughly at 2,000,000,000,000,000 miles, andMendenhall estimates its diameter at almost 2,000,000 miles, more thantwice that of the sun...
Various 「Astounding Stories of Super-Science July 1930」
...He estimates its weight at from90 to 100 tons...
Cecil G. Dolmage 「Astronomy of To-day」
...Campbell, Director of the Lick Observatory, estimates, for instance,that, out of about every half-a-dozen stars, one is a spectroscopicbinary...
Cecil G. Dolmage 「Astronomy of To-day」
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