The Structure and Life-history of the Cockroach (Periplaneta orientalis) / An Introduction to the Study of Insects

Transcriber’s notes :
Except for the spelling corrections listed below, the text of this book has been preserved as in the original, including inconsistent punctuation, hyphenation and accents. Lepidotera → Lepidoptera coccoon → cocoon subtances → substances Bütchsli → Bütschli
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The original cover has been modified by replacing the indistinct black title with more-legible light-coloured lettering.
THE COCKROACH
STUDIES IN COMPARATIVE ANATOMY—III
L. C. MIALL
PROFESSOR OF BIOLOGY IN THE YORKSHIRE COLLEGE, LEEDS
AND
ALFRED DENNY
LECTURER ON BIOLOGY IN THE FIRTH COLLEGE, SHEFFIELD