Excerpt from The Geology of New Hampshire, Vol. 2: A Report Comprising the Results of Explorations Ordered by the Legislature; Stratigraphical Geology
Nearly two years and a half have been occupied in the compilation and printing of this volume. Material additions to our know... ledge of the rocks, consisting of two summers' field-work, have often corrected, improved, and added to the statements already printed. This has been the most marked in the White Mountain district. Mr. Huntington has performed an excellent work, in his chapter upon the C063 and western Merrimack districts, partien larly in distinguishing the coarse granite belt and the fine-grained division of the Bethlehem gneiss, the first being of practical consequence in determin ing the best places to work mica quarries. We have constantly endeavored to state all facts in the briefest possible language and, in consequence of the immense number of observations recorded, the last four chapters have been much abbreviated. In spite of all our efforts, the subjects of Surface Geol ogy, Economics, Mineralogy, and Lithology are crowded out into a third volume, nearly a hundred pages of which are already printed. Mr. Warren Upham has undertaken the description of the Modified Drift; and Mr. Geo. W. Hawes will discuss Mineralogy and Lithology. Both these treatises will be of rare value. We have undertaken the collection of several sets of speci mens illustrating our Lithology, each consisting of two hundred and fifty varieties. These may be found at the college museum, at the state house, and at the normal school. Other sets are on hand for exchange or sale.
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