CONTENTS, 



PART I. ECONOMICAL GEOLOGY. 



Explanatory Remarks, - page 1 



Divisions of the Report. - 3 



Nature of Soils, 4 



Aluvium considered in an agricultural point of view. 5 



Diluvium, Do. - ti 



Tertiary formations, - - Do. - 7 

 New Red Sandstone, Do. ^V 8 



Argillaceous Slate and Graywacke, Do- - 9 



Iron Ore, Steatite, Serpentine Limestone, &c, Do. - 10 

 Quartz Rock, Talcose Slate, Mica Slate, Gneiss &c, Do. - 11 



Greenstone and Porphyry, Do. 12 



Sienite and granite, - Do. - 13 



USEFUL ROCKS AND MINERALS IN THE STATE. 



Granite and Sienite, 13 



Gneiss, 18 



Greenstone, Hornblende Slate and Porphyry, 20 



Quartz Rock, - 22 



Mica Slate, Talcose Slate and Limestone, 23 



Recent discovery of Limestone in Bernardston, - 27 



Berkshire Marble, 28 



Serpentine, 29 



Steatite or Soapstone, - 31 



Graywacke, 33 



Argillaceous Slate, Novaculite, Roof Slate, 34 



Graphic Slate, New Red Sandstone, 35 



Porcelain Clay, 36 



Potter's Clay, - 37 

 Clay used as Fuller's Earth, for the manufacture of Alum, and 



for Manure : Marl, - 38 



Peat, - , 39 



Granular Quartz used for the Manufacture of Glass, 40 



Buhrstone in Washington, - 41 



Coal: Lignite, Bituminous Coal, and Anthracite, 42 



Graphite, or Black Lead, - 47 



