...I know not whence it was, but as she spoke her eyesfilled with tears, and some sudden obstruction in her throat preventedher articulating another word... 
Miguel de Cervantes Saavedra 「The History of Don Quixote de la Mancha」
...He felt ofthe obstruction carefully with his hands until he was assured thatit was indeed a ladder and that a solid wall was just beyond it,ending the corridor...
Edgar Rice Burroughs 「Tarzan the Untamed」
...We accordingly, hoping to have no obstruction offered to our departure, agreed to stay, but when the evening arrived the king sent a messenger to say he wished to see us...
W.H.G. Kingston 「The Two Supercargoes」
...The obstruction must be a natural one as the wolf is certain to detect any artificial arrangement, and avoid it...
A. R. (Arthur Robert) Harding 「Wolf and Coyote Trapping」
...The Southern Trappers sometimes find a tree, stump or rock in the edge of the water, and set the trap in the water, just where the 'coon will walk, when passing around the obstruction...
Elmer Harry Kreps 「Science of Trapping」
...Theepiglottis is of such a size that the finger does not excite a desire tovomit; and the pharynx and œsophagus are so lax that the passagepresents no obstruction...
Dinks, Mayhew, and Hutchinson 「The Dog」
...But little force must be used, and the whole operation conducted withthe utmost care and gentleness; or the œsophagus will be so farlacerated as to produce death, although the obstruction is removed...
Robert Jennings 「Sheep, Swine, and Poultry」
...—The symptoms vary somewhat according to the part of thegullet or throat in which the obstruction is...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The point of obstruction is notalways the same, but it is most frequently at the S-shaped curve of the penis,just above the testicles or scrotum...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...If there is no mechanical obstruction, let thecalf be expelled slowly by the unaided efforts of the cow...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The snow that had fallen was not deep enough to offer the slightest obstruction to their advance...
R.M. Ballantyne 「The Dog Crusoe and his Master」
...By a stroke of genius, they make the unpleasant obstruction into building-bricks...
J. Henri Fabre 「Bramble-bees and Others」
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