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Scientific American, Vol. 81, No. 21 (November 1899) (1899)

leaf 4

An illustration from Scientific American, Vol. 81, No. 21 (November 1899), 1899, leaf 4
as a splint, College Park, Md., read August 19,1899, at the Ohio Stale University, the infested districts of the State, and it has been an owing to the fact that it dries very hard. When kept Columbus, O., before the Association of Economic Entomologists. Re- important factor in the reduction of… … On June 18 I noticed Mexico and in some places in Europe. FIELD OF 100 ACRES, SHOWING CROP OF PEAS DESTROYED BY THE PEA LOUSE. © 1899 SCIENTIFIC AMERICAN, INC.

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