

CONTENTS. 



PAGE 



Memoir on Emery, 1850 5 



Emery Mine of Chester, Mass., 1866 42 



Minerals of Chili, 1854 : 54 



Thermal Waters of Asia Minor, 1849 87 



Ee-examination of American Minerals, 1853 109 



Two New Minerals — Liebigite and Medjidite, 1848 166 



Oxide of Cobalt and Magnesian Opal, 1846 170 



Marl from Ashley Eiver, S. C, 1846 172 



Source of Fluorine in Fossil Bones, 1846 175 



Chrome and Meerschaum of Asia Minor, 1848 178 



Lesleyite of Chester, Peim., 1871 180 



Tetrahedrite, Tennantite, and Nacrite, from the Kellogg Mines, Arkan- 

 sas, 1868., ; 182 



Notes on Corundum of North Carolina, Georgia, and Montana, 1873.. 185 



The Artesian Well at Louisville, Ky., 1869 192 



Kemarks on the Alkalies in Leucite, 1870 198 



On the Composition of Warwickite, 1853 199 



Determination of Alkalies in Minerals, 1853 200 



Conversion of Sulphates of the Alkalies into the Carbonates, etc., 1872. 222 

 Action of some of the Alkaline Salts upon the Sulphate of Lead, 1844. 225 



Composition and Products of Distillation of Spermaceti, 1842 225 



Calcarimeter — An Instrument for estimating the Quantity of Carbonate 



of Lime in Calcareous Substances, 1844 250 



Action of Nitric and Oxalic Acids on the Chlorides of the Alkalies, etc. 



1853 256 



Chromate of Potash, a Ee-agent for Baryta Salts, 1839 259 



Bisulphate of Soda as a Substitute in Analysis for Bisulphate of Potash, 



1850 262 



Action of Potash on Cholesterine, 1844. 263 



Neutral Alkaline Phosphates; Action on Carbonate of Lime, 1844 268 



Eemoval of Sal Ammoniac in Analysis, 1853 271 



Memoir on Meteorites; Five New Meteoric Irons; Composition and 



Origin of Meteorites, 1855 272 



Harrison County Meteorite, fell March, 1859 313 



Description of Three New Meteoric Irons, 1860 317 



Guernsey County Meteorites, fell May, 1860 318 



