SCIENTIFIC NEWS, 79 



ACCOUNT OF NEW SOOKS. 



A Syjlem of Theoretical and Practical Chefiiifiiy, in Tiuo Volumes Accum's fyftem 



with Plates. By Frederick Accum, Teacher of Prac-^ ^ enuftry. 



tical Chemifiry, Pharmacy and Mineralogy, and Chemical 

 Operator to the Royal Inftitution of Great- Britain. Octavo, 



Two Volumes i 733. and full Index and Contents, with Five 



Copper Plates, 



A. HIS work which, is dedicated by permiffion to the mana« 

 gers of the Royal Inftitution, and patronized by a very re- 

 fpeftable lift of fubfcribers, is drawn up for the ufe of fuch 

 as are unacquainted with chemical fcience. The author, 

 therefore, begins by defcribing fuch experiments as are beft 

 adapted to exhibit the general nature of chemical a6lion. The 

 laws of affinity, and alfo thofe which govern the phenomena 

 of heat and light, are ftated by the method of fynthelis, 

 and illuftrated by experiment. And thefe are fucceeded by 

 the claflification of bodies ; namely, firft the principles un- 

 decompofed, then the charafteriftic properties of the gafes, 

 and thefe are fucceeded by the metals, alcalis, earths, &c.. 

 The difplay of thefe, as to their properties and habitudes, 

 by an orderly combination of general narrative and reafoning, 

 with particular fadts, experiments or, operative proceflTes, 

 conftitute the bufinefs of the prefent work, which will doubt- 

 Icfs prove acceptable to the numerous cultivators of the fcience 

 of chemiftry. 



i A praBical Ejfay on the Analyfis of Minerals, exemplifying the Accum's analy- 

 bejl Methods of analyfing Ores, Earths, Stones, Iriflammable ^is of mineral*. 

 Fojfilsy and Mineral Suhjlances in general, % Frederick 

 Ac CUM, Teacher of PraStical Chemifiry, Pharmacy, and 

 Mineralogy. London, 12 wo. 183 pages. ISO*. 



THIS active and indefatigable ledurer, has been requefted 

 by his pupils and auditors, to dra^v up a {qI of concife direc- 

 tions, to enable any per(bn not intimately acquainted with 

 analytical chemiftry, to examine fuch unknown minerals as 

 I be may meet with, and readily afcertain their compofition. 



In 



