...This charge was so efficacious, that the Greek lighttroops were driven in with loss, and forced to take shelter within theranks of the heavy-armed foot-soldiers... 
George Grote 「The Two Great Retreats of History」
... “Oh! sire, Mademoiselle de Tonnay-Charente is a very efficacious remedy,” said Madame, with a sigh...
Alexandre Dumas, Pere 「Ten Years Later」
...The great thing was to get out of the place, as another shell might follow, the enemy having seen, from the falling masonry, how efficacious the last had been...
Lady Sarah Wilson 「South African Memories」
...You say that they take place six days hence; it will be strange indeed if our united ingenuity is not equal to the task of devising some simple yet efficacious plan...
Harry Collingwood 「A Middy of the Slave Squadron」
...Some tribes make a decent snuff of the common trade article, but I never saw either sex chew—perhaps the most wholesome, and certainly the most efficacious form...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 1」
...Bleeding was never more efficacious...
Frederick Douglass 「My Bondage and My Freedom」
...The following is what heprescribes as efficacious for some of the most dire complaints withwhich cats are apt to be afflicted...
Harrison Weir 「Our Cats and All About Them」
...Finally, be aware that careful herding is not the least efficacious ofpreventives; a quiet, even-tempered, and thoughtful shepherd, beinghere of far more value than the stores of the apothecary...
Ambrose Blacklock 「A Treatise on Sheep:」
...If the disease has advanced too far, thistreatment may not prove efficacious, owing to the great malignancy of thecancer and its tendency to recur...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...I hoped and believed that it possessed this means of defence, a means both efficacious and extremely simple...
J. Henri Fabre 「More Hunting Wasps」
...A more melancholysight it was impossible to behold; but so efficacious was thistreatment, that for more than two years I hardly ever saw a monkey inthe neighbourhood...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
...The plantane or hoarhound will either of them cure alone, but they are most efficacious together...
Various 「The Journal of Negro History, Vol. I. Jan. 1916」
...With his prayer wands he rehearses the symbolic figures, praying to the mythical characters who are regarded as most efficacious in the particular ailment under treatment...
Edward S. Curtis 「The North American Indian」
...The unguent isbelieved to be very efficacious, but during its application thewoman's feet may not come into contact with the ground, or all thebenefit of the nostrum would be lost...
Sir James George Frazer 「Balder The Beautiful, Vol. I.」
...The Welsh peasantsbelieve the beads to possess medicinal virtues of many sorts and tobe particularly efficacious for all maladies of the eyes...
Sir James George Frazer 「Balder The Beautiful, Vol. I.」
...There is one argument which they have omitted butwhich seems to me more efficacious than any, viz...
Dorothy Stimson 「The gradual acceptance of the Copernican theory of the universe」
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