N. O. C, Memoir IV. 



Plate II 



SHrOG 



\ BOSTON 



scale of Miles 



MA.P OF 



"HE CAMBRIDGE REGION 



1 9 O 6 Compiled by 



.. o, , , , , ,, CharlesI>.E,lKot c.F 



Limits of the Cambridge Rejion shown Uiv«s +++++* 



