THE NORMAL CURVE 61 



7074-720C. — Continued 



a drainage into the Connecticut above its junction 



with the Passumpsic (cf. p. 70). 

 7201-7357. — Very good except for some drainages. The different 



measurements correspond very well. Besides 



varves mentioned below some others, like 7254 and 



7274, are somewhat doubtful. 

 7201 (together with 7200) represents a drainage. It 



measures, at locality 72, 1 inch (2.5 cm.) ; at 73, 



\~y& inches (2.8 cm.); at 77, % inch (2 cm.); at 78, 



1 inch (2.6 cm.); at 79, i^i inches (3.5 cm.); at 80, 



2 inches (5 cm.); at 82, 4 inches (10 cm.); at 90, 

 5>£ inches (13.5 cm.); and at 91, 1% inches (4.5 

 cm.) (cf. p. 70). 



7203 marks a drainage. The thickness, at locality 72, is 

 2^i inches (5.3 cm.); at 73, 2% inches (7 cm.); at 

 77, \yi inches (3 cm.); at 79, 4 inches (10 cm.); 

 at 80, 2>H inches (8 cm.); at 81, 6 inches (15 cm.); 

 at 82, 8)4 inches (21 cm.); at 90, 13^4 inches 

 (35 cm.) ; and at 91, 4 inches (10 cm.). At localities 

 72 to 77 it consists of silt, at 91 of silt and fine sand, 

 and at the other points of fine sand. It may 

 represent a drainage into the Connecticut NE of 

 its junction with the Passumpsic (cf. p. 70). 



7213, at locality 73, measures 7 inches (17.5 cm.); at 77, 

 ?yyi inches (8.5 cm.) ; at 79, 8 inches (20 cm.) ; at 82, 

 23^ inches (60 cm.) — 15% inches (40 cm.) sand 

 + 8 inches (20 cm.) silt and clay — ; at 83, 35^ 

 inches (90 cm.) — 23^ inches (60 cm.) fine sand 

 and silt + 12 inches (30 cm.) clay — ; at 90, 27^ 

 inches (70 cm.); and at 91, %% inches (21 cm.). 

 The varve consists, at 73 and 77, of silt; at 79 and 

 90, of fine sand; and, at 91, of fine sand and silt. 

 Together with varve 7214 it records a drainage into 

 the Connecticut above its junction with the Pas- 

 sumpsic (cf. p. 70). 



