_s_. 6_d_.

---- A STOREHOUSE OF STORIES. 2 vols. Globe 8vo. 2_s_. 6_d_. each.

---- THE POPULATION OF AN OLD PEAR-TREE; or, Stories of Insect Life.
From E. VAN BRUYSSEL. Illustr. Gl. 8vo. 2_s_. 6_d_.

ZOOLOGY.

_Comparative Anatomy--Practical Zoology--Entomology--Ornithology._

(_See also_ BIOLOGY; NATURAL HISTORY; PHYSIOLOGY.)

Comparative Anatomy.

FLOWER (Prof. W. H.).--AN INTRODUCTION TO THE OSTEOLOGY OF THE MAMMALIA.
Illustrated. 3rd Edit., revised with the assistance of HANS GADOW, Ph.D.
Cr. 8vo. 10_s_. 6_d_.

HUMPHRY (Prof. Sir G. M.).--OBSERVATIONS IN MYOLOGY. 8vo. 6_s_.

LANG (Prof. Arnold).--TEXT-BOOK OF COMPARATIVE ANATOMY. Transl. by H. M.
and M. BERNARD. Preface by Prof. E. HAECKEL. Illustr. 2 vols. 8vo. Part
I. 17_s_. net.

PARKER (T. Jeffery).--A COURSE OF INSTRUCTION IN ZOOTOMY (VERTEBRATA).
Illustrated. Cr. 8vo. 8_s_. 6_d_.

PETTIGREW (J. Bell).--THE PHYSIOLOGY OF THE CIRCULATION IN PLANTS, IN
THE LOWER ANIMALS, AND IN MAN. 8vo. 12_s_.

SHUFELDT (R. W.).--THE MYOLOGY OF THE RAVEN (_Corvus corax Sinuatus_). A
Guide to the Study of the Muscular System in Birds. Illustrated. 8vo.
13_s_. net.

WIEDERSHEIM (Prof. R.).--ELEMENTS OF THE COMPARATIVE ANATOMY OF
VERTEBRATES. Adapted by W. NEWTON PARKER. With Additions. Illustrated.
8vo. 12_s_. 6_d_.

Practical Zoology.

HOWES (Prof. G. B.).--AN ATLAS OF PRACTICAL ELEMENTARY BIOLOGY. With a
Preface by Prof. HUXLEY. 4to. 14_s_.

HUXLEY (T. H.). and MARTIN (H. N.).--A COURSE OF PRACTICAL INSTRUCTION
IN ELEMENTARY BIOLOGY. Revised and extended by Prof. G. B. HOWES and
D. H. SCOTT, Ph.D. Cr. 8vo. 10_s_. 6_d_.

THOMSON (Sir C. Wyville).--THE VOYAGE OF THE "CHALLENGER": THE ATLANTIC.
With Illustrations, Coloured Maps, Charts, etc. 2 vols. 8vo. 45_s_.

THOMSON (Sir C. Wyville).--THE DEPTHS OF THE SEA. An Account of the
Results of the Dredging Cruises of H.M.SS. "Lightning" and "Porcupine,"
1868-69-70. With Illustrations, Maps, and Plans. 8vo. 31_s_. 6_d_.

Entomology.

BUCKTON (G. B.).--MONOGRAPH OF THE BRITISH CICADAE, OR TETTIGIDAE. 2 vols.
33_s_. 6_d_. each net; or in 8 Parts. 8_s_. each net.

LUBBOCK (Sir John).--THE ORIGIN AND METAMORPHOSES OF INSECTS.
Illustrated. Cr. 8vo. 3_s_. 6_d_.

SCUDDER (S. H.).--FOSSIL INSECTS OF NORTH AMERICA. Map and Plates. 2
vols. 4to. 90_s_. net.

Ornithology.

COUES (Elliott).--KEY TO NORTH AMERICAN BIRDS. Illustrated. 8vo. 2_l_.
2_s_.

---- HANDBOOK OF FIELD AND GENERAL ORNITHOLOGY. Illustra