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 In this plain-text version, paired underscores denote _italicised text_, paired asterisks denote *bold text*, a ^ (caret) indicates ^superscripted text and an underscore denotes _subscripted text. Footnotes have been positioned below the relevant paragraphs and illustration captions adjacent to the relevant text. THE COCKROACH An Introduction to the Study of Insects STUDIES IN COMPARATIVE ANATOMY--III THE STRUCTURE AND LIFE-HISTORY OF THE COCKROACH (_PERIPLANETA ORIENTALIS_) An Introduction to the Study of Insects BY L. C. MIALL PROFESSOR OF BIOLOGY IN THE YORKSHIRE COLLEGE, LEEDS AND ALFRED DENNY LECTURER ON BIOLOGY IN THE FIRTH COLLEGE, SHEFFIELD LONDON: LOVELL REEVE & CO. LEEDS: RICHARD JACKSON 1886 STUDIES IN COMPARATIVE ANATOMY. I.--THE SKULL OF THE CROCODILE. A Manual for Students. By Professor L. C. MIALL. 8vo, 2_s._ 6_d._ II.--THE ANATOMY OF THE INDIAN ELEPHANT. By Professor L. C. MIALL and F. GREENWOOD. 8vo, 5_s._ III.--THE COCKROACH: An Introduction to the Study of Insects. By Professor L. C. MIALL and A. DENNY. 8vo, 7_s._ 6_d._ IV.--MEGALICHTHYS; A Ganoid Fish of the Coal Measures. By Professor L. C. MIALL (_In preparation_). MAY BE HAD OF LOVELL REEVE & CO., LONDON; RICHARD JACKSON, LEEDS. PREFACE.