Sander, Klaus The Early embryology of Purilla perpusilla walker, including some observations on the later development Klaus Sander. - Aligarh Deptt. of Zoology 1956 - 61p., ill. 24cm - (Zoological series on Indian insect tybes). (V.4). . Subjects--Topical Terms: Developmental biology Protoplasm Reproduction. Dewey Class. No.: 595.70954 / S14E