CHAP, xvill. REMARKABLE TRAINS OF ERRATIC BLOCKS. 357 



Fig. 50 



s \V? 



00 '.^ 6. 



Rich.in.onil Valley. '; 



MAP SHOWING THE RELATIVE POSITION AND DIRECTION OF SEVEN TRAINS OF 

 ERRATIC BLOCKS IN BERKSHIRE, MASSACHUSETTS, AND IN PART OF THE STATE 

 OF NEW YORK. 



Distance in a straight line, between the mountain ranges A and c, about 



A Canaan range, in the State of New York. The crest consists of green 

 chloritic rock. 



B Bichmond range, the western division of which consists in Merriman's 

 Mount of the same green rock as A, but in a more schistose form, while the 

 eastern division is composed of slaty limestone. 



c The Lenox range, consisting in part of mica-schist, and in some districts 

 of crystalline limestone. 



d Knob in the range A, from which most of the train No. 6 is supposed "o 

 have been derived. 



e Supposed starting point of the train No. 5 in the range A. 



/ Hiatus of 175 yards, or space without blocks. 



g Sherman's House. 



h Perry's Peak. 



k FlatKock. 



I Merriman's Mount. 



