...They should never be allowed near the heat of the fire as they dry rapidly and become brittle and unfit for use... 
Elmer Harry Kreps 「Science of Trapping」
...I once saw one fly out of some weeds carrying a little wrigglingsnake of a very brittle species and about eight inches long in its beak...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...The fat, likethat of all ruminating animals, becomes, on cooling, hard and brittle...
Ambrose Blacklock 「A Treatise on Sheep:」
...more valuableto the manufacturer than a harsh and brittle pile...
Ambrose Blacklock 「A Treatise on Sheep:」
...The bones of an animal advanced in yearsare more subject to fracture because of the preponderance of inorganic matterrendering them more brittle...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...This disease is productive ofchanges in the root and shaft of the hair, rendering it brittle and easilybroken off...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Fragile: easily breakable: thin and brittle...
John. B. Smith 「Explanation of Terms Used in Entomology」
...What can be the nature of that singular lidwhereof the Cerambyx furnishes me with the first specimen? It is ashard and brittle as a flake of lime-stone...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
... The inner envelope is firm, elastic, rigid and, to a certain point, brittle...
J. Henri Fabre 「More Hunting Wasps」
...If skeletonizing in summer time, trust to sun alone, aschloride of lime has a tendency to make the leaves go brittle...
Montagu Browne 「Practical Taxidermy」
...Thus does the easy, passive mode of defenseof the porcupine not only dull his wits, but it makesfrail and brittle the thread of his life...
John Burroughs 「Ways of Nature」
...He had beenmet by the lightning charge of the ram, fair in the ribs, and hurledsprawling into a brittle, pointed tangle of dead limbs sticking upfrom the trunk of a fallen tree...
Charles G. D. Roberts 「The Watchers of the Trails」
...For this purpose they often usethe dry, brittle stalks of the common bee weed (Cleome pungens)...
Cosmos Mindeleff 「Navaho Houses, pages 469-518」
...It is a brittle work allthrough, and not nearly so good as some smaller things in the NationalGallery London, and in the Louvre...
John C. Van Dyke 「A Text-Book of the History of Painting」
...And he thanked her, and weened ithad been so, but she was false, for the sword and the scabbard was counterfeit,and brittle, and false...
Thomas Malory 「Le Morte D’Arthur, Volume I (of II)」
...The mass that had blocked the doorway was crystalline now, and broketo brittle fragments at a blow...
Various 「Astounding Stories, May, 1931」
...Theirlimbs had not been twisted off as afreak of the fall but had been cleanlybroken off, as though the bodies hadsuddenly become brittle and had shatteredon their impact with the ground...
Various 「Astounding Stories of Super-Science, March 1930」
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