5 o ICE RECESSION IN NEW ENGLAND 



3450-3500. — Continued 



3463 is remarkably thick at Springfield and seems to 

 represent a small drainage which made itself felt 

 only locally. 



3501-3600. — Very good. The Hartford and Springfield curves 

 agree very well, considering the different distances 

 of the sections from the ice edge and the fact that 

 several varves, at locality 7, are sandy. 



3601-3623. — The two curves correspond well. 



3624-3766. — This horizon, at locality 7, is sandy. The varves 

 are certainly not thick, and the curve agrees fairly 

 well with the Hartford curve, but it seems proper 

 to exclude the series as not quite good. 



The Hartford curve is good, though the clays 

 there consist of very fine material, the varves are 

 thin, and the varve limits sometimes difficult to 

 distinguish, since the deposition took place very far 

 from the ice border. 



3767-3871. — On the whole the two curves (4-5 Conn.; 4-5 Mass., 

 PI. I) agree well, although at Springfield some 

 varves are sandy and at Hartford the varves are 

 very thin. 

 3820 and 3830, at locality 17, are sandy and each 4*4 

 inches (10.5 cm.) thick, i.e. several times thicker 

 than the other varves. They mark drainages. 

 3840 and 3866-3870, at localities 9 and 17, are sandy and 

 probably represent drainages. 



3872-4000. — Very good. The correspondence between the 

 different profiles is excellent. 

 3931 and 3989 are silty, relatively thick and perhaps 



register drainages. 

 3967, 3970, and 3971, at locality 17 only, are sandy and 5, 

 3K» and 2>H inches (12.5, 9.5, and 9 cm.) thick 

 respectively. 



4001-4200. — Good. The different measurements correspond 

 well. The varves show comparatively great 



