Foreign Literature and Science. 187 



of a gentleman at Bridport, who generously rewarded the fin- 

 der with ten guineas. Search has been made after the other 

 parts of the same animal, but hitherto without success. The 

 perforation for the spinal marrow is stated to be nearly equal 

 in circumference to the body of a man. — Ibid. 



46. Phosphorus in Kelp. — Repeated trials, by Van Mons, 

 have proved, that the roundish and longish veins found in the 

 varec-soda or kelp, after the matter soluble in water has been 

 removed, are principally composed of phosphorus. How did 

 the phosphorus escape combustion ? 



Phil Mag. and Annals Phil Feb. 1827. 



47. Bismuth Cobalt Ore. — This mineral has hitherto been 

 found only at Schneeberg in Saxony : for a knowledge of it 

 we are indebted to M. Kersten, of Gottingen. — External 

 Characters : Colour intermediate between lead gray and 

 steel gray ; lustre metallic, and glistening or glimmering ; 

 texture radiated, partly stellular partly parallel. It scratches 

 fluor spar, but this degree of hardness is occasioned by inter- 

 mixed quartz. Streak dull, color not changed, but the pow- 

 der soils. Specific gravity = 4.5 — 4.7.— Chemical Charac- 

 ters : Before the blowpipe on charcoal gives out white vapors 

 of arsenious acid ; deposits on it a yellow crust, during which 

 the ore becomes of a brown color. When well roasted be- 

 fore the blowpipe, and then mixed with glass of borax and 

 melted, it communicates to it a smalt blue color. If some 

 small pieces of the ore are exposed to a low red heat in a 

 glass tube, it affords a considerable quantity of arsenious 

 acid. It is composed of 



Arsenic, - - - 77.9602 



Cobalt, - - - 9.8866 



Iron, - - - 4.7695 



Bismuth, - - - 3.8866 



Copper, - - - 1.3030 



Nickel, - - - 1.1063 



Sulphur, - - - 1.0160 



99.9282 

 The characteristic ingredients of this ore are arsenic-cobalt, 

 and arsenic-bismuth, a combination of these metals hitherto 

 not met with in the mineral kingdom. 



Jameson's Edin. Journ. Jan. 1827. 



