Preliminary Report On the Alfalfa Weevil. [phytonomus Posticus]
The book Preliminary Report On the Alfalfa Weevil. [phytonomus Posticus] was written by author Francis Marion Webster Here you can read free online of Preliminary Report On the Alfalfa Weevil. [phytonomus Posticus] book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Preliminary Report On the Alfalfa Weevil. [phytonomus Posticus] a good or bad book?
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Burning Machine. Several field experiments were carried out with a machine con- structed with the idea of burning over alfalfa fields after the removal of the first crop for the purpose of destroying the weevils in any stage of development remaining in the field. The machine, as shown in Plate X, figure 1, consisted of an iron frame 9 feet square, 12 inches 30 PRELIMINARY REPORT ON ALFALFA WEEVIL. high in front, and adjustable in the rear. The top was of light sheet iron bolted to the frame. Oi...l was pumped from a barrel in the conveyance to which this machine was attached and forced through a rubber hose into a supply pipe which fed the nozzles and burners underneath. The oil under pressure came forth from the burners as a mist of fire blowing into the stubble and against the ground. The sheet-iron cover served to hold the heat down while this oven passed slowly over the surface. In its unperfected state the machine did effective work and offered ideas of value, warranting the construc- tion of more efficient burners.
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