456 ' Notices respecting Ne'jn Bools. 



Genus Saxifraga. By Mr. David Don. — On a Fossil Shell 

 of a fibrous Structure, the Fragments of which occur abun- 

 dantly in the Chalk Strata and in the Flints accompanying it. 

 By Mr. James Sowerby. — Remarks on Hypnum recognitum, 

 and on several new Species of Roscoea. By Sir James Ed- 

 ward Smith. — Remarks on the Genera Orbicula and Crania 

 of Lamarck, with Descriptions of two Species of each Genus ; 

 and some Observations proving the Patella distorta of Mon- 

 tagu to be a Species of Crania. By Mr. George Brettingham 

 Sowerby. — A Commentary on the Hortus Malabaricus, Part I. 

 By Francis Hamilton, M.D. — Observations on the Chrysan- 

 themum Indicum of Linneeus. By Joseph Sabine, Esq. — Ac- 

 count of the Marmots of North America hitherto known, with 

 Notices and Descriptions of three new Species. By Joseph 

 Sabine, Esq. — On certain Species of Carduus and Cnicus which 

 appear to be dioecious. — By Thomas Smith, Esq.. — The Na- 

 tural History of Lamia Amputator of Fabricius. By the Rev. 

 L. Guilding. — Description of two new Genera of Plants from Ne- 

 pal. By Dr. N. Wallich, — Extracts from the Minute-Book, &c. 



Recent Publications. 



An accurate Table of the Population of the British Empire 

 in 1821; specifying all the Cities and Boroughs in Great Bri- 

 tain, with eveiy other Parish or Place containing 2000 Inha- 

 bitants or upwards, &c. On double Demy Paper, Price 5s. ; 

 fine Paper 7s. Published by E. Wilson, Royal Exchange. 



A Letter to the Rev. T. R. Malthus, being an Answer to the 

 Criticism on Mr. Godwin's work on Population, in the Edin- 

 burgh Review. With an Examination of the Censuses of Great 

 Britain and Ireland. By David Booth. 



Preparing for Publication. 



In the course of next month (January) will be published, 

 Bohn's Bibliographical, Analytical and Descriptive Catalogue 

 of Books in all Languages and Classes of Literature, including 

 an extensive Collection of Botanical and Scientific Works. 



We understand that Francis Maseres, Esq. Cursitor Baron 

 of the Exchequer, whose liberal exertions for the restoration 

 of the older mathematical writers are so well known to the 

 mathematical world, has nearly completed a collection of 

 those which relate to optical science. Amongst the interesting 

 treatises which are reprinted in this volume, are the Optica 

 promota of James Gregoi-y, containing the first publication of 

 the reflecting telescope; the Traite dc la Liimicrc of Huy- 



gens ; and the Lectiones Optica; of Dr. Barrow, a work which 

 as become exceedingly scarce. This work is edited under 

 the superintendance of C. Babbage, Esq. F.R.S. &c. 



ANALYSIS 



