106 Mineralogy and Geology of the White Mountains. 
varies ; it ramifies occasionally 1 into several smaller dikes and lines, 
and in one place, of a few feet square, are eight cut-offs, or disloca- 
tions, where the small veins terminate abruptly, and commence 
in forward or laterally, with granite intervening, and vanish in 
a line or point. The cracks in the granite pass through the dike, 
and at the same angle, and yet the dike intersects veins in the gran- 
ite. A hand specimen obtained here, presents a rare intermixture 
of trap and granite—actually exhibiting five alternations of the 
two, as if the fingers of one hand were alternately inserted be- 
tween those of the other, in the same plane. 
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pyenirtin dike runs vere Secaliel with ifs i in the field on Ro 
west, which a little farther south, beyond the guide-board, may 
observed as No. 2, crossing the E. and W. road in two veins, twenty 
inches apart—eastern one four inches, and western three inches 
wide—the former containing imbedded fragments of granite, the 
. latter dividing into two branches, that become mere lines. Fig. 1. 
North of this road, in the field, this dike is again uncovered, 
and appears in two veins fourteen inches apart. The eastern dike 
