DESCRIPTION OF SECTIONS 13 



6. — 7 miles NE of Hartford, East Windsor Hill, brickyard on 

 Stoughton's Brook and the railroad. 



The clay is covered by 7 feet of sand. The lamination is good. 

 The depth to the bottom of the clay is no doubt considerable. 



Series measured: 3341-3616, 3565-3731, 3681-3854. 



7. — 2% miles SE of Springfield (railroad station), Mass., 

 Forest Park, brickyard on Pecowsic Brook. 

 5 feet unlaminated sand. 

 13 feet varve sand, not measured. 

 Silt, varves 3623-3766. Varves in many cases sandy and 



valueless; probably deposited in too strong current. 

 Light-gray silt with good varves. 

 Depth to bottom unknown. 



Series measured: 3450-3623, 3459-3840, 3543~3590, 

 (3623-3766) 2 . 



8. — K mile N of Springfield, brickyard on Carew Street. 

 6—12 feet unlaminated sand. 

 8 feet varve sand, not measured. 

 Sandy varve silt, often with layers of quicksand. Winter 



layers thin, dark brown. 

 Depth to bottom unknown. 



Series measured: 3758-3930, 3880-3930, (3931-4013, 

 3931-4014, 4027-4108). 



9. — Chicopee, Mass., brickyard at the southern edge of the city. 

 Two sections were measured: 



A. — An abandoned clay pit S of the brickyard, on the 

 highway to Springfield. 



10 feet unlaminated sand. 



12 feet sandy varve silt with lenses of sand, not measured. 



Sandy silt, varves 3782-3870, not used in the construction of 



the curve. 

 Depth to bottom unknown. 



2 Parentheses indicate that the varves have been used only in correcting, not in 

 constructing the normal curve. 



