Books Published by Longman, and Co. 
AN ILLUSTRATED INTRODUCTION TO LAMARCK'S 
CONCHOLOGY, contained in his "Histoire Naturelle des Animaux 
sans Vertebres; " being a Literal Translation of the Descriptions of 
the recent and Fossil Genera, accompanied by Twenty-two highly- 
finished Lithographic Plates, in which are given Instructive Views of 
the various Genera and their Divisions, drawn from Nature, from 
characteristic and generally well-known Species. By Edmund A. 
Crouch, F.L.S. Royal 4to. Price 11. lis. 6d. plain, or 31. 3s. co- 
loured. 
Also, just published, 
AN EPITOME OF LAMARCK'S ARRANGEMENT OF 
TESTACEA: with illustrative Observations and comparative Tables 
of the Systems of Linnaeus and Lamarck. By C. Dubois, F.L.S. and 
F.H.S. 8vo. Price 14s. boards. 
THE LINNiEAN SYSTEM OF CONCHOLOGY j de- 
scribing the Orders, Genera, and Species of Shells, arranged into Di- 
visions and Families, with a view to facilitate the Student's Attain- 
ment of the Science. By J. Mawe. In 8vo. with a Plate to each 
Genera (37); plain, 11. Is. ; coloured after Nature, 21. 12s. 6d. 
By the same Author, 
NEW DESCRIPTIVE CATALOGUE OF MINERALS, 
greatly extended, with Diagramsof their Simple Forms. 7th Edition. 
Price 6s. 
CONVERSATIONS ON MINERALOGY; with Plates, en- 
graved by Mb. and Miss Lowry, from Original Drawings, comprising 
upwards of 400 Figures of Minerals, including 12 beautifully colour- 
ed Specimens. 2nd Edition, in 2 Vols. 12mo. Price 14s. boards. 
" The plan of these Conversations is happily conceived, and it is 
executed with ability and taste. The Author has studiously avoided 
all unnecessary parade of technical Diction, has rendered the Doc- 
trine of Crystallography more familiar than heretofore to the Tyro 
in Mineralogy, and has included some of the most recently disco- 
vered Substances. We may, therefore, unhesitatingly characterise 
this Work as one of the most desirable Text Books that have is- 
sued from the British Press." — Monthly Review, Dec. 1822. 
LECTURES ON BOTANY ; containing the Descriptive 
ANATOMY of those Organs on which the Growth and Preserva 1 - 
tion of the Vegetable depend. By Anthony Todd Thomson, M.D. 
8vo. plates, 11. 8s. boards. 
FIRST STEPS TO BOTANY, intended as popular Illustra- 
tions of the Science, leading to its Study as a Branch of general 
Education. By James L. Drummond, M.D. Professor of Anatomy 
and Physiology in the Belfast Academical Institution. In 12mo. with 
