Mineralogy and Geology of the White Mountains. 113 
Fig. 4. 
No. 2, one quarter of a mile east of the former, crosses the bed 
of Bear Camp river at right angles; course N. by E. ; one to two 
feet wide ; inclines down stream at an angle of 40° or 50°, and 
curves up stream like a bow ; is itself crossed in the middle of the 
stream by a narrow granite fault or vein; on the lower side in 
several places, the granite, from its greater softness has n re- 
moved by the water and the dike, being left prominent, presents 
the appearance of adam. This exposes, on the side of the dike, 
a series of longitudinal light and dark gray stripes, never over two 
inches wide, arranged horizontally in regular alternations.* The 
river bed above, as well as below this dike, is filled with trap ruins. 
Dikes in Eaton. 
On the hill, near Mr. Eleazar Snell’s, one quarter of a mile east 
of the village, are two dikes from two to three feet wide and 
alse course in general N. E. by E.; one containing a 
owe this “oat to the kindness of a friend. 
15 
Vou. XXXIV. —No. 
