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Leavens Brothers Air Services agricultural aviation agricole dusting épandage

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Walter Thomas Leavens examining the cups which drove the agitator mounted inside the hopper of the Piper J-5 Cub Cruiser light / private airplane flown by Leavens Brothers Air Services Limited. Anon., “Crop Dusting with a Cub.” Canadian Aviation, July 1945, 50.
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Weed’em and Reap: Leavens Brothers Air Services Limited and the early days of agricultural aviation in Ontario / Canada after the Second World War

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Rénald Fortier
Ingenium – Canada's Museums of Science and Innovation
Jul 12, 2020
Are you a vegetarian, my reading friend, or a vegan? Omnivore, perhaps? Or frutarian, lacto-vegetarian, ovo-vegetarian, lacto-ovo-vegetarian? No matter. For thousands of years, people all over our spherical, yes, yes spherical, planet have depended on the crops they grew to sustain them. Agriculture, as you undoubtedly know, appeared about 12 000 years ago in a region of the Earth known as the Fertile Crescent, a crescent region anchored on the Nile, in modern day Egypt, at one end, and on the

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