The American journal of science and arts . from its greater softness has been re-moved by the water and the dike, being left prominent, presentsthe appearance of a dam. This exposes, on the side of the dike,a series of longitudinal light and dark gray stripes, never over twoinches wide, arranged horizontally in regular alternations.* Theriver bed above, as well as below this dike, is filled with trap ruins. Dikes in Eaton. On the hill, near Mr. Eleazar Snails, one quarter of a mile eastof the village, are two dikes from two to three feet wide andthree feet apart; course in general N. E. by E.


The American journal of science and arts . from its greater softness has been re-moved by the water and the dike, being left prominent, presentsthe appearance of a dam. This exposes, on the side of the dike,a series of longitudinal light and dark gray stripes, never over twoinches wide, arranged horizontally in regular alternations.* Theriver bed above, as well as below this dike, is filled with trap ruins. Dikes in Eaton. On the hill, near Mr. Eleazar Snails, one quarter of a mile eastof the village, are two dikes from two to three feet wide andthree feet apart; course in general N. E. by E. ,* one containing a * I owe this notice to the kindness of a friend. Vol. XXXIV.—No. 1. 15 114 Mmeralogy and Geology of the White Mountains. fragment of granite imbedded. Fig. 5. A farmer of the vicinity-stated, that there are several other dikes cutting the hill in simi-lar directions, and this statement derives confirmation from thenumerous boulders, or fragments of trap, scattered over the fieldsand laid up in the farm walls. Fig. Blende and Galena. Three miles south of Eaton is a mine wrought for lead. Theore is a mixture of yellowisli brown blende and galena, whichis abundant, and was formerly worked in a shaft fifty feet deep,with a horizontal drift, and as I understand with profit. Opera-tions are suspended at present by some legal impediment, and notthrough a deficiency of the ore. The specimens, with the twosulphurets intermingled, are beautiful, and will reward the min-eralogist for his labor in procuring them. Crystallized Smoky Quartz, is found near Pendexters in Bartlett, occupying large geodes inmasses of decomposing granite on the flanks of Kearsage moun-tain. The crystals are very clear and beautiful, from one to fourinches long, and even one and a half to two inches in pyrites, crystallized and massive, occurs in a largevein, in a mountainous tract, four miles north of Bartlett, belong-ing to Mr. Eastman. Mineralogy and Geology of the W


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