JUST READY. 
CASSELLS NATURE WORKS. 
PROSPECTUS POST FREE. 
CASSELL’S NATURAL HISTORY 
By F. MARTIN DUNCAN, F.R.P.S., F.R.MLS. 
Member of the Marine Biological Association of the United Kingdom. 
Author of ‘‘ Denizens of the Deep,’’ etc. 
With 16 Colour Plates and more than 200 Illustrations from Photographs by the Author. 
Medium 8vo. 450 pages. 9s. net. 
Essentially a popular book, inasmuch as it is written in simple language and contains explanations of all 
‘scientific terms that are used, thisis nevertheless a book for every natural history student. It gives a survey 
of the whole animal kingdom, beginning with the microscopic forms and working up on evolutionary lines 
to the higher orders. Mr. Martin Duncan's illustrations add greatly to the interest of his text; some of 
the autochromes of living creatures are, indeed, noteworthy contributions to direct colour photography. 
NEW EDITION. JUST READY. 
By HENRY SCHERREN, F.ZS. 
With Coloured Plates and numerous Illustrations in the Text. New Edition. Cloth Gilt, 3s. 6il. 
Superior Edition, 5s. 
The object of this book is to give a short account of the animal kingdom in clear and simple language. 
The author's aim has been to write in such fashion that the book may serve to waken interest in the 
observation of the habits of the lower animals. 
SOME KEARTON BOOKS 
KEARTON’S NATURE PICTURES. 
Beautifully reproduced in 24 Colouved Plates, 72 
Rembrandt Photogravures, and hundreds of Photo- 
graphic Reproductions, with Descriptive Text by 
RicHArRD KEeEarTON, F.Z.S., F.R.P.S.- In Two 
handsomely bound Volumes, cloth gilt, gilt top, 
135s. each net. 
‘PICTURES FROM NATURE. 
15 enlarged Photographs of Birds and Beasts at 
Home, reproduced in the highest style of Rem- 
Drandt Photogravure. Size 15 in. by 11in.; in 
sumptuous Portfolio, 10s. 62, net. 
BRITISH BIRDS’ NESTS. 
How, Where and When to Find and Identify Them. 
NrEw AND REvIsED EDITION. 
With 15 Plates of Eggs, photographed in their 
Natural Colours from actual and topical specimens, 
6 beautiful Photogravures of Birds, and over 40U 
Pictures photographed direct from Nature by CHERRY 
and RICHARD KeEarton. Cloth, gilt top, 14s. nel. 
WITH NATURE AND A CAMERA. 
Being the adventures and observations of a field 
naturalist and an animal photographer. Illustrated 
by 180 Pictures from photographs. Cloth gilt 7s. 6d, 
Cheap eaition, cloth gilt, as. 
CASSELL & CO., LTD. La Belle Sauvage, LONDON, E.C. 
SCIENTIFIC BOOKS FOR DISPOSAL— Geological, 
Antiquarian, etc.—including ‘ The Geologist,’ ‘ Geological 
Magazine,’ Geological and other Societies’ Publications, ‘ The 
Naturalist,’ &c. Full particulars may be obained by writing to 
PLATT, MORREDGE, ROCHDALE, 
“THE NATURALIST’ for 1913. 
Edited by T. SHEPPARD, F.G.S. and T. W. WOODHEAD, Ph.D., F.L.S. 
Tastefully bound tn Cloth Boards. Price 7/- net. 
Contains 440 pages of excellent reading matter; 19 full-page, high- 
class plates ; and numerous tllustrations throughout the text. 
THE volume includes many valuable and attractive articles by some 
of the most prominent naturalists and leading scientific men in the 
country, and forms a handsome, well-illustrated, and most acceptable 
present to all interested in out-door life. 
TO BE OBTAINED FROM ALL BOOKSELLERS, 
