CHEMICAL AND GEOLOGICAL 



ESSAYS 



BY 



THOMAS STEEEY HUNT, LL.D., 



Fellow of the Royal Society of London ; Member of the National Academy of Sciences of the 



United States, the Imperial Leopoldo-Carolinian Academy, the American 



Philosophical Society, the American Academy of Sciences, 



the Geological Societies of France and Belgium 



and of Ireland ; Officer of the Order 



of the Legion of Honor, 



etc., etc., etc. 



BOSTON: 

 JAMES E. OSGOOD AND COMPANY, 



LATE TICKNOR & FIELDS, AND FIELDS, OSGOOD, & Co. 



1875. 



