596 MANUAL OF NATURAL HISTORY. 



wi' the Lantern/' or " Will wi' the Wisp ; " 

 6, as Light Carburetted-Hydrogen, gaseous, 

 sp. gr. 0*5555, colourless, inflammable, odour 

 empyreumetic, escaping from bituminous 

 deposits, and known in coal-mines as " Fire- 

 damp ;" and 7, as Olefiant-Gas, gaseous, 

 colourless, inflammable, giving off much 

 smoke, often accompanying the last-named 

 in coal-mines, and entering into the compo- 

 sition of " Fire-damp/' Symb. H. 



II. ORDER. CHRYSEXIDES. 



Metals of the gold series, either native or alloyed ; 

 solid. 



1. FAMILY. Chry sides. Minerals consisting of, or 

 containing principally, gold. Occur 1, native; 

 H. 2'5-3, sp. gr. 19*3, in quartz in metamor- 

 phic palaeozoic rocks, or in resulting tertiary 

 alluvial or diluvial drifts, especially in Hun- 

 gary, the Ural mountains, in Africa at Kor- 

 dofan, Senegal, and Zanzibar, in some Asiatic 

 islands, and in Japan and China, in Australia, 

 in Brazil, Chili, Peru, Mexico, the United 

 States, and in California ; 2, combined with 

 Tellurium as " Graphic Gold ;" H. 1 -5-2, sp. 

 gr. 5'73, in Transylvania ; 3, in the same 

 locality with silver, antimony and tellurium 

 as " Aurotellurite," soft, sp. gr. 8 ; 3, as Gold- 

 Amalgam, united with mercury and silver, 

 in Columbia ; 4, as Electrum combined with 

 silver, in Siberia and Hungary. 



