Scientific American 1917-04-21 | <h5>magazineart.org: A visual encyclopedia of American magazine art 1870-1940</h5>

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Scientific American 1917-04-21

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Plunging through an irrigating ditch with a continuous-tread tractor.

Scientific American 1917-04-14

Scientific American 1917-04-28

Created on: Tuesday 4 November 2008
Posted on: Tuesday 4 November 2008
Keywords: agribusiness, agriculture, farm, farming, irrigation, machinery, mechanization, tracked vehicle, water
Albums: General Magazines / Science and Technology Magazines / Scientific American
Visits: 1710

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