130 [June, 



gas evolved wa3 passed through a solutioa of ammonia chloride of copper, but 

 not a trace of sulphur could be detected in this manner. 



Id the 5th supplement to Rammelsberg's Handworterbuch der Chemischen 

 Mineralogie, th's meteoric iron is mentioned as passive, experiments having been 

 made by Prof. Wohler ; but the piece belonging to Mr Vaux is evidently active, 

 throwing down metallic copper from a neutral solution of its sulphate. ThJf! 

 experiment was repeated with great care with confirmatory results. 



No. 1 was dissolved in hydrochloric acid, and a slight precipitate was obtained 

 by hydrosulphuric acid, which, on a careful examiualioa before the blow-pipe, 

 was found to be copper with a trace of tin. 



Iron, - - - - - - 90V2 per cent. 



The phosphorus was estimated in a separate portion, which was first oxydixed 

 by nitric acid and fused in a platinum crucible with carbonate of soda. 



No. 2 was dissolved in nitric acid. It gave 



Iron, - - - - - - 90 37 per cent. 



Nickel, 7-79 



Insolublo residue, - - - - 191 " 



Description of two new species of Urodeles, frovi Georgia. 



By Edward Hallowell, M.D. 



Sub-Fam. BOLITOGLOSSID.^. 



PSEUDOTRITON MARGISATUS, nob. 



') 



Char. Head small, depressed, rounded in front; eyes lateral, oblique, not 

 prominent, looking upward and outward ; gape of the mouth extending a short 

 distance behind the posterior commissure of the eye; maxillary teeth small, 

 internal nares small and circular; a transverse row of vomerine teeth on each 

 side passing beliind the internal nares, continuous with several rows of longi- 

 tudinal palatine teeth diverging posteriorly, so as to leave a wide interspace in 

 the shape of the letter Y reversed ; tongue small, circular, bolitoglossal, free hX 

 the edges, and supported upon a small central pedicel ; body slender, cylindrical ; 

 extremities slender; toes 4 5 ; tail somewhat compressed, longer than body. 



Color. Dark ash color above, almost black, shaded obscurely with yellow ; 

 a lateral band of dusky white margined with black on each side near the abdo- 

 men, exteoding from the anterior to the posterior extremities ; under parts dnsij 

 white, very minutely spotted or blotched with black. 



Dimensions. Length of head 3 lines ; greatest breadth 2 lines ; length of rect 

 and body to vent 1 inch 4 lines, (Fr. ;) length of tail 1 inch 4 lines. Total length 

 2 inches II lines. 



Hibitnt. Liberty County, Georgia. One specimen in Mus. Acad. Nat. Sc, 

 presented by Major Le Conte. 



PSECDOTRITON FLAVISSIMCS, nob. 



Char. Head of moderate size, rounded above; snout truncate; eyes ratbfT 

 prominent, latero-superior, oblique, looking upward and outward ; tongue small, 

 circular, raushroom-shaped, supported upon a central pedicel, the edges free; 

 internal nares rather small, ovoid or subcircular in shape; maxillary teeth 

 minute, sharp-pointed, the points directed backward; vomerine and palatine 

 teeth as in marginalus; body more robust than in the former species, more or 

 less compressed upon the sides ; extremities slender: tail compressed, of nearlj 

 Bame length as body, (about a line longer.) 



