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Scientific American, Vol. 65, No. 2 (July 1891) (1891)

leaf 7

An illustration from Scientific American, Vol. 65, No. 2 (July 1891), 1891, leaf 7
geons of from 1 to 3 years ; for 180 miles, 6 pigeons of distance between the bar and ledge being adjustable. from 3 to 3 years ; for 310 miles, 7 pigeons of from 3 to A ' l'J^'ll^^W!l^''1i^''B"|'iJ■I|'''^ •'ri't'lt'l! The oil box has a central oil chamber in its upper face 4 years ; and for 340… … turned on, after which the feed is regulated so that the paired pigeons, in which the birds generally remain COOEEBLY'S HYDBOCABBON BUBNEB. oil will only pass a little above the bottom of the when they re-enter the cote. Each pair has its own deflector, the oil being vaporized by the heat of the…

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