TO CORRESPONDENTS. 
Professor Hiscins on his Atomic Theory ;—and Mr. Perer Niewox-. (7 
son on a New Method of Treating Factorial and Figurate Numbers— ~ 
have been reccived, and will’ appear in due course, pe 
This Day is published, i in One Volume Crown aes with $60 Woody | 
Cuts, Price 12s, Boards, the Second Edition, greatly enlarged, rae | 
N ELEMEN’ TARY INTRODUCTION TO MINERALOGY, 
comprising some Account of the Characters and Elements of 
nerals, Explanations of Terms in common use, Descriptions of Minerale: } 
with Accounts of the Places and Circumstances in which they are found, - 
and especially’ the Locatities of British Minerals ; with upwards of 360- 
Wood Cuts, representing the Forms of Crystals, &c. printed on the same - 
pages with the Descriptions of the Minerals to which they belong. 
By WILLIAM PHILLIPS, F.LS. ; 
Member of the Geological Societies of London and Coraweall 
’ Printed and Sold by William Phillips, George Y ard, Lombard Street, 
st London. —Of whom also may be had,  * 
By the same Author, ete 
’ In Ohe Vol. 12mo. Price 9s. in Boards). RS ) 
A SELECTION of FACTS from the best Authorities, arranged. 50. 
as to form An-Ovrtuine of the Groxocy of ENGLAND and Wate with 
a Map and Sections of the Strata, 
Also, in One Vol. 12mo, Price 6s. in Boards, the Third Edition af 
OUTLINES of MINERALOGY and GEOLOGY, intended for wa) 
use of those who may desire to become acquainted with, the Elements vf 
sbeee Sciences, espectally of Younk Persohs. ie 
.. CATON’S WORKS.—A New Edition, Price $5.- 
oA PQPULAR TREATISE on the PREVENTION and CURE 
‘ 
of the DIFFERENT STAGES of ASTHMA, with new ‘and suc- 
cessful- Instructions for the Prevention and Treatment of Asthmatic Fits, 
Relusing the Theory of Respiration, &c. % 
By T. M.CATON, Surgeon, 
No. 10, Stanhope-Street, Newcastle-Street, Strand ; late of the United 
Hospitals ‘of St, Thomas ‘and Guy. 
* Printed for Messrs: Sherwood and Co.20, Paternoster Row; and Ww. ‘Ney, | 
718; Lombard Street, 
Also, » 
A “TREATISE on INDIGESTION: being an Inquiry into the Dis 
easés arising and connected with the Functions of the Stomach : with Re 
marks on the Liver, and its Influence on the Gastric System: to whi 
are prefixed some general Observations on Scrofulous and Cutaneous Pie: 
, gases. \ Price 3s.- 
} 
