60 ICE RECESSION IN NEW ENGLAND 



7001-7073. — Continued 



SJ4, 13, and 6 inches (13, 33, and 15 cm.). At 

 the localities south of Woodsville this varve is 

 everywhere questionable because of sliding. Judg- 

 ing from the thicknesses the drainage reached the 

 lake in the vicinity of locality 80. 



7020, in the lake at Woodsville, is silty and too thick. 



7028, at localities 79, 70, 73, and other points south of 

 79, is silty and about 2 inches (5 cm.) thick, while, 

 at localities 80 and 82, it measures 1 and 1% inches 

 (2.6 and 3.2 cm.) respectively, showing that the 

 drainage originated from one of the side valleys 

 at Woodsville. Since this varve, at locality 76, 

 is only y A inch (2 cm.) thick, it probably marks 

 a small drainage through the Ammonoosuc River. 



7060-7065 are silty and somewhat doubtful. 

 7074-7200. — Rather good. The horizon, at most localities, is 

 exceedingly fat, almost like green soap. Conse- 

 quently the thicknesses of the varves are often 

 altered by pressure from overlying strata. This 

 may be the reason why the correspondence among 

 the different measurements, though fair, is not so 

 good as might be expected. On account of the 

 consistency of the clay, slides occur frequently. 



7 1 72-7 18 1 are more accentuated at locality 82 and at 

 Inwood than at the other localities, but even at 

 Inwood two-thirds to three-quarters of the varves 

 consist of greasy clay, 



7200, at locality 72, measures 2}4, inches (5.5 cm.); at 73, 

 3^ inches (9.5 cm.); at 74, 2 inches (5 cm.); at 77. 

 i?4 inches (3.5 cm.); at 79, 4^6 inches (11 cm.); 

 at 80, 10 inches (25 cm.); at 81, 8K inches (21 

 cm.); at 82, I2>^ inches (32 cm.): at 90, 15^ 

 inches (40 cm.); and at 91, 4K inches (12 cm.). 

 At localities 72 to 79 it is silty, at 91 sandy and 

 silty, and at the rest sandy. It evidently represents 



