. Bulletin. Natural history; Natural history. HARRIS: INITIAL STUDIES OF ELM DISEASES. Fig. 3.—Tip of a lateral branch, showing the manner in which the presence of disease is first manifested. Crooking of the twig tips and retention of the end leaves are typical early symptoms. Only the terminal part of the lowest twig has become infected, as is indicated by the presence of healthy leaves toward its base. Photographed June 27, 1931. X Vz-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of th
. Bulletin. Natural history; Natural history. HARRIS: INITIAL STUDIES OF ELM DISEASES. Fig. 3.—Tip of a lateral branch, showing the manner in which the presence of disease is first manifested. Crooking of the twig tips and retention of the end leaves are typical early symptoms. Only the terminal part of the lowest twig has become infected, as is indicated by the presence of healthy leaves toward its base. Photographed June 27, 1931. X Vz-. 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 Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
