102 ICE RECESSION IX NEW EXGLAXD 



Locali y 



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25 





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310 



Fig. 19 — Part of curves at localities 27 and 28, near Greenfield, Mass., situated 

 only 600 yards apart. The thick varves, at locality 28, consist of coarse sand, often 

 in lenses. Some varves at locality 27 are also sandy. The elevation of the localities 

 is about the same. The current may have swept over locality 28, but this does not 

 seem to be a satisfactory explanation. Scale, X A actual thickness. 



