1824.] Scientific Nut ice$ — Chemistry. 151 



" The theory here proposed perfectly corresponds with the 

 fact, and the experiment confirms the existence of hyponitrous 

 acid ; the degree of diminution cannot, I apprehend, be 

 explained on any other supposition than that now made. The 

 fact, that the water, which absorbs the red vapours, produces 

 nitrites, is no proof that nitrous acid alone is formed ; we know 

 very little about the nitrites; but it is very easy to conceive, from 

 the relations of nitrons and hyponitrous acids, that in concentrat- 

 ing- a solution containing a mixture of salts, having these acids 

 in their composition, the whole may pass to the state of nitrites 

 by the agency of air, heat, and moisture." Dana.— (American 

 Journal of Science.) 



We are sorry that so ingenious a paper as that from which we 

 have made the preceding extract, should be sullied by the remark 

 respecting Dr. Ure (we beg to be excused quoting it), which 

 occurs at p. 340. It was wholly uncalled for, and the author has 

 most unnecessarily gone out of his way to introduce it. — J. G. C. 



7. Tartarized Antimony. 

 Dr. Gobel has given the following as the results of his analy- 

 sis of this salt : 



Protoxide of antimony 42-60 



Tartaric acid 45-00 



Potash 9-80 



Water 3 " 75 



101-15 

 Its atomic constitution he considers to be : 



2atoms=2 x48=96-0Protox. of antimony"! = 1 at. subpro- 

 + 1 atom = 69-8 Tartaric acid J tartrate of an tim. 



iatom = 22-5 Potash Y m \ atom of neutral 



■K atom m 34-9Tartanc acid f ftte of tash 



+ latom= 8-5 Water J l 



which would give 



Protoxide of antimony 41-4 



Potash * 9-7 



Tartaric acid 45-1 



Water 3*6 



99-8 

 (Schweigger's Journal.) 



8. Inflammation of Sulphuretted Hydrogen by Nitric Acid. 

 When a {ew drops of fuming nitric acid are put into a flaflk 

 filled with sulphuretted hydrogen, the hydrogen is oxidized by 



