248 INDEX. 
stratified rocks, on certain move- 
ments in the parts of, 227. 
Silmian rocks of Ireland, 239. 
T. 
TiU, fossUs of the Norfolk, 31. 
Tin veins in Newr Hampshire, 37. 
Thermal springs, connection of, w^ith 
anticlinal axes, 39. 
Tertiary beds of the Isle of Man, con- 
cretions in, 129. 
Tertiary strata of Massachusetts, 160. 
Testudinata, new fossil, 197. 
U. 
United States, phenomena of drift in 
the, 34. 
Ural Mountains, geology of, 201. 
■ V. 
Virginia, Coal rocks of, 38. 
Venetz's hypothesis of glacial action, 
67. 
W. 
Washingtonite, a new mineral, 134. 
Westmoreland, on the silurian rocks 
of the south of, 149. 
Z. 
Zamia Sussexiensis, 165. 
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