. An ecological study of the mayfly Chirotenetes [microform]. Éphémères; Mayflies; Flies; Mouches. u a velocity 2 9 feet per second b II 2 .6 II ti tt a c II ?> .6 II ti a a d 11 .0 II ii << • *. Size of stone = 12X22 inches. At a velocity to foot per second. " b " '? " " " c " " " " d " " " " e " " " II II. 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

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. An ecological study of the mayfly Chirotenetes [microform]. Éphémères; Mayflies; Flies; Mouches. u a velocity 2 9 feet per second b II 2 .6 II ti tt a c II ?> .6 II ti a a d 11 .0 II ii << • *. Size of stone = 12X22 inches. At a velocity to foot per second. " b " '? " " " c " " " " d " " " " e " " " II II. 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 Clemens, W. A. (Wilbert Amie), 1887-1964. [Toronto : University Library, pub. by the librarian]

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectflies, bookyear1917