...In order that we may, without loss of time or effort, concentrate ourforces in a wise direction, I suggest what seems to me and many othersthe wisest policy to be pursued... 
Booker T. Washington 「The Future of the American Negro」
...If we turn from Australian to Indian snakes, the peculiar tendency ofthe poison to concentrate its action on special nerve-centres becomesstill more marked...
A. Mueller 「On Snake-Poison: its Action and its Antidote」
...Many males concentrate within a few square yards in thechoruses and float upright usually beside or beneath a stem or leaf,or other shelter, rendering them extremely inconspicuous...
Henry S. Fitch 「Field Study of Kansas Ant-Eating Frog」
...They attempted to concentrate the productof the Navajo wool trade at this point and to establish here acompletely appointed woolen mill...
Victor Mindeleff and Cosmos Mindeleff 「A Study of Pueblo Architecture: Tusayan and Cibola」
...As has already been explained, it is not sufficient in drawingto concentrate the attention on copying accurately the visualappearance of anything, important as the faculty of accurateobservation is...
Harold Speed 「The Practice and Science Of Drawing」
...This practical way of indicating dutieshelped the heedless to concentrate their attention,and did much to increase the number ofprayers offered...
Dolores Bacon 「Pictures Every Child Should Know」
...It disperses the light,doesn't concentrate it! Ah! Here isanother, and another...
Various 「Astounding Stories of Super-Science February 1930」
...McGuire glared back into that face,and he tried with all the mental forcethat he could concentrate to get acrossto the exultant one the fact that theyhad not wholly conquered him...
Various 「Astounding Stories of Super-Science, December 1930」
...Wilcox, of course, neverexplains an order, but the reason for having only one operator on thejob is simply to concentrate responsibility on that one man...
Roman Frederick Starzl 「The Martian Cabal」
...We would simply enforce our authority until we located definiteresistance; we would then concentrate our efforts upon isolating thesource of this resistance and overcoming it...
Sewell Peaslee Wright 「Priestess of the Flame」
...Let us concentrate ourattention specially upon that line of the solar spectrum marked ...
Robert Stawell Ball 「The Story of the Heavens」
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