[ 230 ] 



XL I. Notices respecting New Books, 



JVIr. Charles Sylvester is preparing for publication An Ac- 

 count of the Impioveinents in Doiiiestic Qilconomy adopted at 

 the Derbyshire Intinnary, describinti: the Means of warming and 

 ventilating tlie Apartments, the Kitchen, Laundry, &c. ilhistrated 

 with plates. The arrangements at this Infirmary having long 

 excited the attention of social oeconomists, Mr. Sylvester's work 

 we doubt not will prove highly interesting. 



Mr. Hanson of Manchester will shortly pubHsh a folio chart, 

 entitled The Meteorologist's Assistant; accompanied with a card 

 explanatory of the mode of notation. The chart will serve for 

 any year and place re([uired ; but the principal object of it is 

 to bring into one view a year's observations of the weather by 

 means of curves and characters ; of course it will facilitate a 

 comparison of coteniporary notations of remote places. 



For some interesting particulars respecting Mr. Smith's Geo- 

 logical Map, and Mr. Arrowsmith's Great Map of England and 

 Wales, which have just been published, our readers are referred to 

 Mr Farey's Communication published in the present number. 



A new edition of Dr. Wells's Essay on Dew is in the press, 

 and will appear in October. 



XLIL InleUigence and Miscellaneous Articles. 



We continue M. Van Mons's valuable communication to the 

 Editor of this work. 



[Continued fiom p. 153. J ^ 



'^ X HE analysis of azote which your Journal has given, throws 

 considerable light on the nature of tlie acidifiablfi combus- 

 tibles. A peculiar inflaannable gas, strongly oxidated, forms 

 this combustiii'e ; and this inflammable gas united to hydrogen 

 constitutes a metal, since tlie azote uiiited to this principle 

 constitutes a metallic oxide, whi'h is ammonia. Azote may, 

 according to the analysis of M. Berzelius, consist of a pecu- 

 liar intlannnable gai and of oxygen, since in a dry acid there 

 ought t!i lie \{im\i\ i*ru!)le the (niantity of oxygen of that in wa- 

 ter ; but it- elements cann. t i)e 46 hydrogen and .^4 oxygen ; 

 such a compound, as having only four of caloiic, l)eing no longer 

 either a buiaing or a combustible body, ecjual parts forming 

 complete saturation with exclusion of all caloric, and being in- 

 organized 



