ele&ricity 

 Oxigen 



Air, 



120 ACCOUNT OF A. NEW PLANET. 



All fupporters fake a vievv of the different fupporters, we fhall find that all of 

 ftraother' " ^em wmcn can be obtained artificially, are procured either 

 fupporters, 01 by from other fupporters, or by the agency of electricity. 



I. Oxigen gas may be procured from nitric acid and oxi- 

 muriatic acid, two fupporters ; and from feveral of the partial 

 fupporters, as the black oxide of manganefe, the red oxides of 

 lead and of mercury. The a&ion of heat is always neceffary ; 

 but the procefs is very different from eombuftion. 



II. Air, as far as is known at prefent, cannot be formed ar- 

 tificially. The gas indeed which comes over during part of the 

 ufual diftillation of nitre and fulphuric acid to obtain nitrous 

 acid, refembles air very clofely. But it is obtained from a 

 fupporter. 



III. The gaseous oxide of aaote, or nitrous oxide of 

 Davy, has hitherto been only procured from nitrous gas and ni» 

 trie acid (nitrate of ammonia), both of which are fupporters. 



IV. Nitrous gas can only be procured by the decompo- 

 sition of nitric acid, a fupporter. 



V. Oximuriatic acid can be formed by combining mu- 

 riatic acid with the oxigen of nitric acid, a fupporter ; or with 

 the oxigen of the black oxide of manganefe, the red oxides of 

 lead, iron, mercury, &c. all of which are partial fupporters. 



Nitric acid VI. Nitric acid is formed fpontaneoufly upon the furface 



formed fpontane- f the earth by proceffes with which we are unacquainted. 



(To be continued.) 



Oxide of azote. 



Kitrous gas. 



Oximunatic 

 acid. 



IV. 



Difcovery of a 

 new planet. 



$ome Account of a new Planetary Body, di/covered by 

 Dr. Olbers, on the 28ih of March, 1802. 



A LETTER from Dr. J. H. Schroeter, of Lilienthal, t# 

 Mr. Beft, London, was lately read at the Royal Society, in 

 which he gives an account of this remarkable difcovery of a 

 fecond planetary body of fmall apparent magnitude, difcover- 

 ed by Dr. Olbers, of Bremen, on the 28th of laft March, when 

 it formed the fouth point of an equilateral triangle with the 

 fiars Nos. 20 and 1 9 of the conftellation Virgo. During the 

 comparifons he was induced to make, from his conviction that 

 it was not there in January when he re-difcovered the Cere* 



near 



