00596cam a22002051 4500 agr22000103 DLC 20260227110942.0 791002s1921 mau 000 0 eng c agr22000103 (OCoLC)5456485 U.S. Dept. of Agr. Lib. DSI DLC premarc QL532 .P42 Pearce, Ethel Katharine, 1856- . Typical flies; a photographic, by E. K. Pearce ... Second series. Cambridge, University press, 1921. xiv, 38 p. illus. 27 cm. Diptera. 8771 8771