DESCRIPTION OF SECTIONS 15 



14. — 200 yards N of locality 13, Hampshire Brick Co.'s yard. 



A few feet of varve sand. 



Yarve silt, changing downwards into clay, which finally 



becomes fat. Lamination very good. 

 iK feet slidden clay, probably representing only a few varves. 

 Gravel and cobbles at the bottom of the clay pit. Varve clay 



is said to occur beneath and to extend to unknown depth. 



Series measured: 3903-4256, (4257-4273). 



15. — 3 miles NNE of Holyoke, South Hadley, ravine on Stony 

 Brook at the southern edge of the village, 200 yards W 

 of the highway. 



More than 20 feet sand. 



4 feet disturbed varve clay. 



Red-brown clay in thin, typical varves, numbers 4405-4656. 



Silt and sand, varves 4397-4404. 



Sand somewhat coarser than quicksand, with varves up to 

 5M feet in thickness, numbers 4357-4396 (cf. p. 51). 



Silt and quicksand in thick varves, numbers 4296-4356. 



Depth to bottom considerable. 



Series measured: 4305-4356, 4305-4356, 441 1-4600. 

 (4289-4304, 4357-4410, 4357-4375, 4601-4656). 



16. — ^i mile N\V of locality 15, bluff on Stony Brook. 



2 feet till with several 10-inch cobbles, probably carried there 

 by an iceberg. 



3 feet weathered varve clay. 



Clay with good lamination, varves 4405-4630. 

 Varve sand down to the level of the brook. 

 Depth to bottom considerable. 



Series measured: 4405-4600, (4387-4404, 4601-4630). 



17. — 4>^ miles N of YVestfield, Mass., brickyard on the railroad. 

 Two sections were measured : 

 A. — The eastern clay pit. 



Silt with winter layers so thin that the varve limits are very 

 difficult to distinguish. The silt is covered by 3 feet of 

 coarse sand. Depth to bottom is unknown. 



Series measured : (3780-3885). 



