Transcriber’s Note:

New original cover art included with this eBook is granted to the public domain.

THE
CAMBRIDGE NATURAL HISTORY

EDITED BY

S. F. HARMER, Sc.D., F.R.S., Fellow of King’s College, Cambridge; Keeper of the Department of Zoology in the British Museum (Natural History)

AND

A. E. SHIPLEY, M.A., Fellow and Tutor of Christ’s College, Cambridge; Reader in Zoology in the University

VOLUME IV

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CRUSTACEA

By Geoffrey Smith, M.A. (Oxon.), Fellow of New College, Oxford; and the late W. F. R. Weldon, M.A. (D.Sc., Oxon.), formerly Fellow of St. John’s College, Cambridge, and Linacre Professor of Human and Comparative Anatomy, Oxford

TRILOBITES

By Henry Woods, M.A., St. John’s College, Cambridge; University Lecturer in Palaeozoology

INTRODUCTION TO ARACHNIDA, AND KING-CRABS

By A. E. Shipley, M.A., F.R.S., Fellow and Tutor of Christ’s College, Cambridge; Reader in Zoology

EURYPTERIDA

By Henry Woods, M.A., St. John’s College, Cambridge; University Lecturer in Palaeozoology

SCORPIONS, SPIDERS, MITES, TICKS, ETC.

By Cecil Warburton, M.A., Christ’s College, Cambridge; Zoologist to the Royal Agricultural Society

TARDIGRADA (WATER-BEARS)

By A. E. Shipley, M.A., F.R.S., Fellow and Tutor of Christ’s College, Cambridge; Reader in Zoology

PENTASTOMIDA

By A. E. Shipley, M.A., F.R.S., Fellow and Tutor of Christ’s College, Cambridge; Reader in Zoology

PYCNOGONIDA

By D’Arcy W. Thompson, C.B., M.A., Trinity College, Cambridge; Professor of Natural History in University College, Dundee

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1909

All the ingenious men, and all the scientific men, and all the fanciful men, in the world, with all the old German bogypainters into the bargain, could never invent ... anything so curious, and so ridiculous, as a lobster.

Charles Kingsley, The Water-Babies.

For, Spider, thou art like the poet poor,

Whom thou hast help’d in song.

Both busily, our needful food to win,

We work, as Nature taught, with ceaseless pains,

Thy bowels thou dost spin,

I spin my brains.

Southey, To a Spider.

Last o’er the field the Mite enormous swims,

Swells his red heart, and writhes his giant limbs.

Erasmus Darwin, The Temple of Nature.