NEW WORKS AND NEW EDITIONS 
INTRODUCTION to ENTOMOLOGY ; 
Or, ELEMENTS of the NATURAL HISTORY of INSECTS. 
By Wm. Kirby, M.A. F.R.S. & L.S., and Wm. Spence, Esq. F.L.S. 
5th edition, 4 thick vols. 8vo. Plates and Portraits, price £i. in boards. 
INTRODUCTION to the 
MODERN CLASSIFICATION of INSECTS : 
Comprisinj? an Account of the Habits and Transformations of the different Families ; 
a Synopsis of all the British, and a Notice of the more remarkable Foreig^n Genera. 
By J. O. Westwood, Sec. Ent. Soc. London, F.L.S. &c. 
Parts 1 to 4, price 2s. 6d. each. 
To be completed in about Ten Monthly Parts, containing upwards of a Tliousand 
Illustrations on Wood. 
*^* This work is intended to form a Sequel to the Work of Messrs. Kirby and Spence, 
who have kindly sanctioned the work being- so called. 
MANUAL of BRITISH VERTEBRATE ANIMALS 
Containing Descriptions and Measurements of all the British Animals belonging to 
the Classes Mammalia, Aves, Reptilia, Amphibia, and Pisces. 
By the Rev. Leonard Jenyns, M.A. F.L.S. &c. 
8vo. 13s. bds. 
A HISTORY of the RARER BRITISH BIRDS. 
By T. C. Eyton, Esq. F.L.S. 
Being intended as a Supplement to Bewick's Birds. 
Tliis work contains descriptions of all the species, about .33 in number, discovered 
since the time of Bewick, with woodcut Figures of nearly all, and with Vignettes; also, 
a Systematic Catalogue of all the British Birds hitherto discovered. 
8vo. 10s. 6d. ; royal 8vo. 21s. 
By the same Author, 
A MONOGRAPH of the ANATID^,oi DUCK TRIBE; 
Including the GEESE and SWANS. 
Illustrated by 24 lithographic Plates (of which six are coloured), chiefly by Gould, Scharf, 
and Lear ; and upwards of 70 Woodcuts, illustrating the Forms of the 
Bills and Feet in the dilFerent Genera. 4to. ^'4. cloth lettered. 
LETTERS to a YOUNG NATURALIST, 
ON THE STUDY of NATURE and NATURAL THEOLOGY. 
By J. L. Drummond, M.D. Author of " First Steps to Botany." 
12mo. Cuts, 7s. 6d. bds. 
BOOK of NATURE : 
A Popular Illustration of the General Laws and Phenomena of Creation. 
By John Mason Good, M.D. F.R.S. 
3d Edition, 3 vols. fcp. 8vo. 24s. 
TAXIDERM Y ; 
Or, the Art of Collecting and Preparing Objects of Natural History. 
12mo. Plates, 4th Edition, 7s. 6d. 
