IMPORTANT WOUKS ON NATURAL HISTORY. 



In the course of Publication, 

 I. 



ITJ.USTHATIONS OF THE FOSSIL CONCHOLOGY 

 OF (iHKAT BRITAIN AND IRKLAND. 



BY CAPTAIN THOMAS BUOWN, F.L.S., &c 

 1. ICach Number will contain Four Coloured Plates, engraved on Steel by tlie first Artists, with Four Pages of 



.»I..it.... f ..•*..■• •^••j.j-. • •..oj.t l.^.H •••■■Ik 4l>i> T i\i*n\tt ttiL. Ill U.'ltl/^li flirtt* r-k^/^iif ft-^ ■«*•!(-•<. "Iii*<^i^ Shli il I ■ vi#rc C/VlloiirCU OF 



Species will 



Descriptive I-eltir-press ; together with the Localities in which thr-y occur, &c. price Three Siiillings i 

 Two Shillings I'liiin. A Fasciculus *vill iip|)ear regularly on the Hrsl day of every month. 



"2. 'I'he Work will extend to 'I'wenty-five Numbers, containing in all One Hundred Plates. The .,,,^...^., ..■.. 

 Ik: systematiciilly arranged, agreeably to the classification of Lamarck, with the recently formed Genera of Deshayes, 

 Sow'erby, I'arkinstin, &e. introduceJ into their respective places. Every Number will comprise at least Forty Shells, 



;). At the end of the Work will appear a Stratigraphical Index, on an entirely new plan, exhibiting at one view 

 tJic wliole British Species of Fossil Shells, with their Geological positions. 



II. 



ILLUSTRATIONS OF THE CONCHOLOGY 

 OF GREAT BRITAIN AND IRELAND. 



BY CAPTAIN THOMAS BROWN, F,L,S., &c. 



SECOND EDITION, WITH ADDITIONS. 



1, Each Numljcr will contain Four Coloured Plates, with complete Descriptions, Localities, &c. A Fasciculus 

 will apj)ear regularly every month. Price Two Shillings and Sixpence Coloured, or One Shilling and Sixpence 

 Plain. 



2. The Work will extend to Fifteen Numbers, containing in all Fifty-eight Plates, with about Twelve Hundred 

 Figures of Shells, l)eing Uepresentations of ALL the S[)ecies discovered up to the present time, including Marine, 

 Land, and I'Vesli Water; together with Illustrations of the Animals of nearly the whole Genera. The Plates are all 

 already engraveil by Mu W. II. Liza us, so that the ^\'ork will appear with the utmost regularity. 



.']. 'iliis is the only Work which contains Ueprestntatii.ns of ALL the Species, and is the only British Concho- 

 logy in which the Ammai.s have been introduced, and is sold at a jiricc not a third of others which do not contain a 

 Iialf of the .Sj)ecies, while the Engravings are executed in a much higher stylo of art. 



III. 



In the Pi'csSy and Speedily li'iU Appear, 



THE ELEMENTS OF FOSSIL CONCHOLOGY, 



Illustrated by Figures, engraved on Steel, of ALL the known Genera; with their Generic Characters, and a 

 eomi)l('te Description of their application to tlie elucidation of the various Geological periods. By Captain 'I'iio.^ias 

 BiifiwN, F.L.S., &c. Iloval l8mo. 



IV. 

 THE AMERICAN ORNITHOLOGY 



Of ALKXANDKR WILSON, and CHARLES LUCIAN BONAPARTE, Prince of iMusignano, 

 uith tiic! addiliuii of all the newly discovcrcrl Sjiecios, systcmaticallv Anaiiueil ; and a Life of the 

 Author. 13y Cai'Tain Thomas Uuown, F.L.S,, &c. 



L This Work will appear in Mondily NuiiiIkis, cadi containing .Sij; Coloured Plates, ol a royal 4to. size, 

 ncconi|)anied by 'i'welve Pages of Letter-|>ress. Price Three .Shillings and .Sixpence. 



•-'. The \Vork will extend to Thirty-one Numliers, and will form, when complete, two handsome royal 4to. 

 vohinus, with One Hundred and Eighty-six Plates. The whole of the Land Birds the dimensions of a pigeon and 

 under are the si/e of nature, and exiiibit both male and female where a dilfeience exists in the phunage of the sexes, 

 and in some eases the young, and are all at least the sizes of those of the justly celebrated original work; and many of 

 the Water Hlrds have been considenibly enlarged. 



.•). Nearly the whole Plates arc already engraved, by Lizars, Scott, Mitchell, Miller, Milne, Harvey, and oilier 

 celcbruted artists. 



4. This Work, when completetl, will not have cost the subscrilx?rs, even with the addition of upwards of Onk 

 HuNnnKn and Fiitv Bums, more than an eighth j)art of the original American ((lition, now out of print, which 

 was published at a sum exceeding JJIO, jind is in the hands of very few individiiuls in (ireat Britain. 



