270 = Lead Mines, &c. of Hampshire County, Mass. 
ber is chesnut, butternut, wainut, elm, white and yellow oak, 
soft maple, sometimes bard maple and hemlock. The third 
variety is called plain land, and lies directly upon, or covers 
the secondary rocks. It is usually about as extensive as 
conglomerate and old red sandstone, although it sometimes 
covers more or less of the primitive formation. This is the 
fact at Hatfield and Northampton, where the sienitic granite 
is often covered several feet in depth with this variety. It 
sometimes even approaches into the regions of mica slate and 
granite. When in the regions of granite, it generally lies 
in small hills, but in some instances it is directly upon the 
rock formation, with the first variety over it, as is seen in the 
profile under the tertiary formation. This variety is @ 
it, and it sometimes runs into clay. enerally speak- 
mg; this variety has no blocks, boulders or pebbles in 
Arabia’ wherever it exists. “'This soil is naturally so dry, 
that it’ is’ good neither for grazing nor tillage ; but by 
the application of gypsum or ashies, it amply rewards the toil 
of the husbandm € timberof this soil is shrub oak,. 
white and yellow pine, some white oak, &c. It has been 
soimetimes said that this variety is an original formation; be 
them - From the large scales of mica seen in this sand, one 
world be led to suppose that at some period it had come- 
ao act with granite or mica slate, or that it was formed 
T have entirely omitted the coal formation, not be- 
to furnish any additional facts; and on the map, the 
Sis sec as well as the ceest, though but a small part 
14s really seen on the surface, is represented as geest- 
