. The conference called by the governor of Pennsylvania to consider ways and means for preventing the spread of the chestnut tree bark disease. : The Capitol, chamber of the House of Representatives, Harrisburg, Pennsylvania, February 20 and 21, 1912. Stenographic report of proceedings of the conference. Chestnut blight. No. 35. Distribution of tlie chestuvit bark disease. Horizontal lines indicate approximate distribution of uninfected chestnut; dots indicate isolated infected spots ; the heavier lines in various directions indicate varying degrees of infection culminating in an area about Ne


. The conference called by the governor of Pennsylvania to consider ways and means for preventing the spread of the chestnut tree bark disease. : The Capitol, chamber of the House of Representatives, Harrisburg, Pennsylvania, February 20 and 21, 1912. Stenographic report of proceedings of the conference. Chestnut blight. No. 35. Distribution of tlie chestuvit bark disease. Horizontal lines indicate approximate distribution of uninfected chestnut; dots indicate isolated infected spots ; the heavier lines in various directions indicate varying degrees of infection culminating in an area about New York City in which all chestnut trees are Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pennsylvania Chestnut Blight Conference (1912 : Harrisburg); Pearson, Raymond A. (Raymond Allen), 1873-1939; Pennsylvania. Chestnut Tree Blight Commission. Harrisburg, : C. E. Aughinbaugh, printer to the State of Pennsylvania


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Keywords: ., bookauthorpennsylv, bookcentury1900, bookdecade1910, bookyear1912