DESCRIPTION OF SECTIONS 29 



Series measured: 6642-6662, 6643-6666, 6647-6713, 

 6648-6658, 6680-6706, 6690-6805, 6714-6823, 6726-6823, 

 681 1-6823, 6858-6981, 6858-6922, 6858-6898, 6858-6871, 

 6894-7073, 6930-6980. 



64. — 1 mile SSE of Westboro, N. H., ravine on the southern side 

 of the Mascoma River, S of the first railroad bridge across 

 the river. 



Plain of sedimentation. 



4 feet fine sand. 



Typical varve clay. 



80 to 100 feet till down to the river. 



Series measured: 6750-6802, (6734, bottom varve -6749). 



65. — 1 mile SE of Westboro, cut on the road 150 yards NE of 

 the new bridge across the Mascoma River and the 

 railroad. 



The clay shows good lamination. Depth to bottom is unknown. 

 Series measured: (6760-6801). 



66. — y A mile N of White River Junction, Vt., ravine just W of 

 the railroad. 



The clay shows rather good lamination. It is covered by 4 

 feet of sand. Below the measured series the varves, which 

 are slidden, become thick and silty. Depth to substratum 

 is more than 30 feet. 



Series measured: 6783-6888. 



67.— y A mile SSE of Hanover, N. H., bluff on Mink Brook. 



25 feet sand and silt. Varve limits hardly distinguishable. 



Varves 6806-7040, silty, often sandy and with lenses of sand. 

 Varve limits often very difficult to distinguish. Thicknesses 

 varying greatly, but on the average about 2 inches. 



Varves 6760-6805, silty, distinct. Thickness varying from 1 

 to 15 inches. 



Exposed to the level of the brook. Depth to bottom un- 

 known. 



Series measured : (about 6760 to about 7040; only varves 

 6806-6862 have been used for control of the number). 



