TREATISE 



MINERALOGY, 



NATURAL HISTORY OF THE MINERAL KINGDOM. 



FREDERICK J^OHS, 



PROFESSOR IN THE MINING ACADEMY OF FREIBERG. 



Translated from the German, with considerable Additions, 



HY 



"WILLIAM HAIDINGER, F.R.S.E. 



OF THE 



UNIVERSITY J VOL. II. 



EDINBURGH : 



PRINTED FOR ARCHIBALD CONSTABLE AND CO. EDINBURGH j 



AND HURST, ROBINSON, AND CO. LONDON. 



1825. 



