...My bay horse was found to be invaluable for the service of a quarter-master of a transport-train; for to such was I compelled to compare myself... 
Henry M. Stanley 「How I Found Livingstone」
...The invaluable Césarine procured them forus...
Grant Allen 「An African Millionaire」
...to Lord Roberts, with a smiling face, who, with his unfailing spirits, must have been an invaluable companion to his chief during those trying weeks...
Lady Sarah Wilson 「South African Memories」
...By an amendment to the Constitution the Negro wasgiven the right of franchise, and, theoretically at least, his ballotbecame his invaluable emblem of citizenship...
Ida B. Wells-Barnett 「The Red Record」
... It is a tonic, the exhilarating effect of which is invaluable...
Various 「Ainslee's, Vol. 15, No. 6, July 1905」
...I am grateful to my wife, Janis, for her invaluable assistance and for typing the manuscript...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Hard as iron, tireless andfearless, he has been an invaluable assistant inall that pertains to Park protection...
Various 「Hunting in Many Lands」
...It is only now and then that such dogs as Doll are to be met with, andwhen they are, they are invaluable, either as sporting dogs or ascompanions...
Edward Jesse 「Anecdotes of Dogs」
...The Dachshund is also invaluable for finding wounded deer; for which purpose the hunter usually chains the dog, who then leads his master over the trail to locate the game...
Oliver Hartley 「Hunting Dogs」
...The Colonel, in the TenthEdition of his invaluable Book on Shooting, writes—page 285—"Since thepublication of the last edition, Lieut...
Dinks, Mayhew, and Hutchinson 「The Dog」
...As a cross with other breeds, theyare invaluable in improving the flavor of the flesh, which is aninvariable consequence...
Robert Jennings 「Sheep, Swine, and Poultry」
...Perched thus upon the roof of the Cape,as it were, and surmounted by cupola and belfry, the hall andthe "orthodox" church made invaluable beacons, visible fromfar and near in every direction...
Bradford Torrey 「The Foot-path Way」
...Nearly all these birds are ableto turn the outer toe completely round, andmost of them, also, have very keen hearing,which must be an invaluable aid whenhunting small animals in the dark...
Frederick G. Aflalo 「Birds in the Calendar」
...The commoncoralline (Corallina officinalis) — a sea-weed whichso rapidly attracts carbonate of lime as to be almost of a stonyor coral-like texture — is another invaluable plant forfitting up...
Montagu Browne 「Practical Taxidermy」
...It's invaluable in town, and you may study it to greatadvantage in the country...
R. S. Surtees 「Mr. Sponge's Sporting Tour」
...They worked hard now collecting the lovely birds that abounded in the forest, and the gloriously tinted beetles and butterflies, Coffee and Chicory having by this time grown invaluable as collectors...
George Manville Fenn 「Off to the Wilds」
...In countries where bulls and cows will not live, goats are invaluable...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
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