The Crayfish: An Introduction to the Study of Zoology.

by Thomas Henry Huxley

THE INTERNATIONAL SCIENTIFIC SERIES.
VOL. XXVIII.

THE COMMON CRAYFISH.
(Astacus fluviatilis, Male.)
Frontispiece.

THE CRAYFISH

AN INTRODUCTION TO
THE STUDY OF ZOOLOGY

BY
T. H. HUXLEY, F.R.S.

WITH EIGHTY-TWO ILLUSTRATIONS

SIXTH EDITION

LONDON
KEGAN PAUL, TRENCH, TRÜBNER & CO., Lt^d.
1896

“Διὸ δεῖ μὴ δυσχεραίνειν παιδικῶς τὴν περὶ τῶν ἀτιμοτέρων ζῴων ἐπίσκεψιν· ἐν πᾶσι γὰρ τοῖς φυσικοῖς ἔνεστί τι θαυμαστὸν.”—ARISTOTLE, De Partibus, I. 5.