...These measures, however, came comparativelylate, were enforced with varying degrees of efficiency, and didnot seriously affect the slave-trade before the Revolution... 
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...When the Sultan Elmansour came to the throne of Morocco, heincreased the efficiency of his army by supplying it with fire armsand cannon...
W.E.B. Du Bois 「The Negro」
...Friends and foes attest his efficiency...
Henry Bibb 「Narrative of the Life and Adventures of Henry Bibb, an American Slave, Written by Himself」
...They have almost the intelligenceof the shepherd in discerning the vagaries of the flock, and tentimes his efficiency in driving it...
Richard L. Allen 「Domestic Animals」
...With every step upward in the organization of society we find thatthe number and efficiency of these subjugated creatures increases...
Nathaniel Southgate Shaler 「Domesticated Animals」
...Everywhere was quiet efficiency and tirelessly patient and skillfulwork on the part of the trainers...
Albert Payson Terhune 「Bruce」
...Before cold-storage methods had been brought to high efficiency, therewas a period in the latter part of the winter and the early spring whenyoung chickens were very scarce...
John H. Robinson 「Our Domestic Birds」
...In fine, if we are powerless toarrest the fell disease when its periods revolve, we may hope at somefuture time to act with greater efficiency upon it during its period ofincubation...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...It isused like a pick, being driven home with a heavyblow and getting its efficiency from its ownweight and wedge-shape and from the force withwhich it is impelled...
Fannie Hardy Eckstorm 「The Woodpeckers」
...But though accountingfor the structure may give a clue to itsdescent, it does not justify its efficiency...
Fannie Hardy Eckstorm 「The Woodpeckers」
...Do you wish to convince yourself of the efficiency of this mechanism?Take a Cigale but newly dead and make it sing...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...When a horse arrives at a regiment he is assigned to a troop accordingto colour, size, weight and mental efficiency, and later he ispermanently assigned to a man...
Royal Dixon 「The Human Side of Animals」
...The day schools are in a good stateof efficiency, and are of great service to the district...
Atticus 「Our Churches and Chapels」
...Ray Summers, with his usual quick efficiency, cut the throttle...
Various 「Astounding Stories, April, 1931」
...Although driven almost to distraction by the horror of herpredicament, he worked with a cool, swift efficiency...
Various 「Astounding Stories, March, 1931」
...But, itall moved smoothly, quietly, with wonderful efficiency...
Various 「Astounding Stories of Super-Science September 1930」
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