Sckntific Newt, Accounts of Beths, tsfc. f^ 



Philofophtcal TranfaB'ions of the Royal Society of London, for the Tear l8oo. Part III. 

 ^«/jr/fl, />. 295, -with twelve Plates. London; fold by Elmfley. Price 1 73. 6d. 



THIS part contains : — 19. Experiments on the folar, and on the terreftrlal rays that 

 occafion heat; with a comparative view of the laws to which light and heat, or rather the 

 rays which occafion them, are fubje6l, in order fb determine whether they are the fame ot 

 different. Part II. By William Herfchel, L. L. D. F. R. S. 20. An Account of the Tri- 

 gonometrical Survey, carried on in the years 17971 1798, and I799> by order of the Mar- 

 quis Cornwallis, Mailer General of the Ordnance. By Captain William Mudge, of the 

 Royal Artillery, F. R. S. Communicated by his Grace the Duke of Richmond, F. R. S. 



Analytical EJpiys towards promoting the Chemical Knowledge of Mineral Suhjlances. By Martin 



Henry Klaproth, Profejfor of Chemifiry, AJfejfor to the Royal College of Phyftcians, Member 



of the Royal Academy of Sciences at Berlin., and various other learnid Societies. Tranjlated 



from the German. 1 vol. 8vo. p. 592. London. Sold by Cadell and Davies. 



IT is altogether unneceflary to apprife the fcientific world of the value of the analyfes of 



this great improver of chemical fcience. I (hall therefore only inform the reader in this 



place, that we are indebted for the prefent accurate and only tranflation to the learned editor 



of Gren's Chemiftry, Dr. Gruber, who promifes in his preface to give an immediate 



Englifh edition of the next colle£lion which Klaproth fhall publifli, and of which he has 



given hopes to the editor. 



An Epitome ofChemlflry In three Parts. Part I. Intended to facilitate to the Student the Ac- 

 quifitlon of Chemical Knowledge., by minute InflruEllons for the performance of Experiments. 

 Part II. DlreHlonsfor the Analyfts of Mineral Waters \ of Earths and Stones; of Ores of 

 Metals ; and of Mineral Bodies In general ; and Part III. InflruBlons for applying Chemical 

 FaEls and reagents to various ufeful Purpofes. By William Henry. Duodecimo, ai6 

 Pages. Printed for Johnfon. 



THE title of this work is fufficiently copious to exhibit its objefts and plan. The 

 praftical, as well as fcientific knowledge of the author, have enabled him to produce a ma- 

 nual which I doubt not will be received with avidity by the public. I will not incur the 

 imputation of vanity by afluming the office of an approver, where the author's powers are 

 fp well known : but I think I (hall not deviate from the line of my duty in obferving that, 

 as far as my obfervation extends, he has, on the prefent occafion, cxercifed thofe powers 

 with the diligence and attention which are peculiarly demanded in a manual of fcience. 



EleSlrie 



