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. ^ 



Tertiary formations, - - Do. ----- 7 



New Red Sandstone, - Do.' - - - 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 



