INDEX. 



149 



Moraine terraces in Scotland, 36. 



Moraines of ancient glaciers, supposed on West- 

 field river, 138. 



Moraines of ancient glaciers on Deerfield river, 

 141. 



Moraines of ancient glaciers on Queechee river, 

 143. 



Murchison, Sir R. I., on Osars, 36. 



N. 



Nason, H. B., his sketch of boulders, 137. 



Natural bridges in Va., erosions at, 117. 



Natural bridges on the Euphrates, 118. 



Natural bridge on the Litany, 118. 



Naumann, Prof., his views on drift, 67. 



New Pane, Vt., valley of, erosion in, 108. 



New river, gorge on, 116. 



Niagara falls and gorge at, 109. 



Nicol, Prof., his description of a raised beach in 



Scotland, 38. 

 Nicollet's Map of the Upper Mississippi, 5. 

 Noggerath, Prof., on the Rhine terraces, 9. 



0. 



Oak Orchard creek, N. Y., gorge on, 111. 



Oban, Scotland, stria? there, 38. 



Oceanic agency distinguished from that of rivers, 



90. 

 Ocean once stood over most of this continent, 53. 

 Ohio river, terraces along, 30. 

 Optical deception in the Alps, 42. 

 Osars defined : in this country, 4. 

 Osars in Ireland, 35. 

 Osars in Sweden : in N. Hampshire, 36. 

 Osars, do they exist in this country, 45. 

 Organic remains in drift; in Vermont, Canada, N. 



Hampshire, Maine, and Long Island, 64. 

 Organic remains more recent at Mt. Holly, Vt. : 



and Geneseo, 65. 

 Owen, Prof. Dale, on western surface geolgy, 32. 



Parallel Roads of Glen Roy, Scotland, 1, 36. 



Parallel Roads of Glen Roy, theories of their ori- 

 gin, 37. 



Peck, Lt., his description of the Grand Canon, 

 113. 



Pentagraphic delineator, 7. 



Periods in surface geology, 74. 



Pettee's Plain and Pine Hill, in Deerfield, 19. 



Plum Island, Mass., 27. 



Plymouth, Mass., moraine terraces of, 33. 



Pocomtuck Mt., in Heath, 27. 



Pocomtuck Mt., named in 1856, by the Senior 

 Class, in Amherst College, 96. 



Pocomtuck Mt., stria? upon, 142. 



Portlock, Col., Report on geol. of Ireland, 33. 



Pot-holes, proofs of former rivers, 52. 



Pot-holes at Great falls : Falls on the Genesee 

 river : at Trenton and Bellows falls, 92. 



Potomac, Great falls and gorge on, 105. 



Proctorsville gulf, Vt., 104. 



Purgatories, ancient, in Rhode Island, Massachu- 

 setts, and N. Hampshire, 88. 



Queechee, Waterqueechee, or Ottoqueechee river, 

 in Vt, 143. 



R. 



Railroads across the Green Mts., 97. 



Ramsey, Prof., on the surface geology of Wales, 



34. 

 Ravendooz river, Koordistan, gorge on, 118. 

 Redfield, Wm. C, his views on surface geology, 



74. 

 Red river, Canon upon, 113. 

 Rhine, valley of, terraces in, 38. 

 Rhine valley, surface geology of, like that in this 



country, 39. 

 Rhine, gorge of, between Coblentz and Bingen, 



114. 

 River action, how distinguished from that of drift, 



89. 

 River action, how distinguished from that of the 



ocean, 90. 

 River beds, ancient : at Niagara falls : on Genesee 



river: in Cavendish, Vt.: on the Connecticut, 



at Portland : on the Delaware : in Antwerp, N. 



V.: on Agawam river, in Russell, 124. 

 Rivers, changes in their beds, at Portland, Weth- 



ersfield, East Hartford, Springfield, South Had- 



ley, 46. 

 Rivers, changes in their beds, in Amherst, Hat- 

 field, Hadley, and Claremont, 47. 

 Rivers, how they excavate their beds, 92. 

 Rivers in many places filling up their beds, 126. 

 Rivers deepening their beds chiefly at cataracts, 



127. 

 River erosion, does not account for all valleys, 93. 

 River erosion, caution in judging of, 93. 

 Rogers, the Professors, their earthquake waves, 72. 

 Robinson, Prof. E., on terraces on river Jordan, 32. 



