Transcriber's note: The conventional male and female symbols are rendered as [M] and [F] in this edition. In the discussion of _Papilio polytes_ the male symbol [M] must be distinguished carefully from the unbracketted M denoting the male-like variety of females. CAMBRIDGE UNIVERSITY PRESS C. F. CLAY, MANAGER LONDON: FETTER LANE, E.C. EDINBURGH: 100 PRINCES STREET…
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