. An ecological study of the mayfly Chirotenetes [microform]. Éphémères; Mayflies; Flies; Mouches. I' II. Fiu '.i. — I'pland portiDn. Cascadilla 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