. Automatic sprayer for control of biting flies on cattle. Spraying; Flies. .^â . Biological Notes No. 27 Printed by Authority of the State of Illinois NATURAL HISTORY SURVEY DIVISION Harlow B. Mills, Chief Urbana, Illinois February, 1952. 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 Bruce, Willis Nels. Urbana

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Keywords: ., bookcentury1900, bookpublisherurbana, booksu, booksubjectspraying