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15 per cent altitudes American River B. M. per acre bowlders brush growth ceanothus chaparral chiefly consists culled dense diameter difficult of access Digger pine district Donner Pass drainage basin east eastern portion elevations extensive Feather River feet B. M. feet in height Fork of American Fork of Feather Fork of Yuba glades gorge Hill incense cedar Lexington Hill lodgepole pine main canyon main range manzanita Middle Fork miles mill timber Mohawk Valley North Fork northern slopes pasture Patton hemlock Peak pine and red placer red and white red fir reforestation region restocking ridges scattered yellow pine Shasta and white Shasta fir Shasta-fir forest Shasta-fir type sheep Sierra Valley small quantities soil South Fork species steep stream sugar pine summits throughout tracts type of forest undergrowth upper western white fir white pine woodland yellow and sugar yellow-pine forest yellow-pine type young growth Yuba Basin Yuba River
Seite 106 - I;" and the profit from the recoinage would much more than pay the expense of such repair. The system here indicated was outlined in a cablegram to the Secretary of War, dated the 2d of September last. It is impossible to state, with any degree of accuracy, the amount of Mexican and Filipino silver now in the islands. A great portion of the Mexican silver that was here prior to the period of American occupancy was smuggled in, and there are no statistics to show its amount. The estimated amount of...
Seite 195 - A circular giving complete lists may be had on application. The Bulletins, Professional Papers, and Water-Supply Papers treat of a variety of subjects, and the total number issued is large. They have therefore been classified into the following series: A, Economic geology; B, Descriptive geology; C, Systematic geology and paleontology; D, Petrography and mineralogy; E, Chemistry and physics; F, Geography; G, Miscellaneous...
Seite 47 - ... south of Clinton, and some maple and other soft woods in the low grounds. It is noticeable that all the principal slopes about this valley, and generally on the upper Pequannock water-shed, are well timbered. The valley has a considerable number of scattered trees over its cultivated portion, mostly from 8 to 12 inches in diameter and 40 to 50 feet high. The large trees noted were a black walnut, three-quarters of a mile west of Milton, 30 inches by 50 feet ; a red oak, one-quarter of a mile...
Seite 175 - The soil of the basin is chiefly glacial detritus. On the slopes and summits of the ridges it is sandy, gravelly, and liberally strewn with masses of drift bowlders. The flats, largely formed by silting while they still constituted beds of lakes, have a deep soil of fine sand and mold resting on coarse gravel and bowlder drift. The soil of the flats in the northern area of the basin is invariably more or less alkaline. Ridges composed of brecciated lavas, which crumble easily under the influence...
Seite 13 - ... of Shasta fir 24 XI. Map of northern Sierra Nevada, showing range of sugar pine 26 XII. Map of northern Sierra Nevada, showing range of Digger pine and western juniper 28 11 LETTER 0F TRANSMITTAL.
Seite 195 - Plummer. 1902. 42 pp., 11 pis. 7. Forest conditions in the Olympic Forest Reserve, Washington, from notes by Arthur Dodwell and TF Rixon.
Seite 195 - Ashe. 1905. 291 pp., 37 pis. Besides the foregoing, three volumes on forestry have been published, as Pt. V of the Nineteenth, Twentieth, and Twenty-first annual reports, each consisting of several papers. Correspondence should be addressed to — THE DIRECTOR, UNITED STATES GEOLOGICAL SURVEY, WASHINGTON, DC FEBRUARY, 1905.
Seite 121 - The western portion of the basin is noted for its rich and extensive placer deposits, which have been worked since the early days of gold discoveries in California. Since the introduction of hydraulic methods the auriferous gravel beds west of a line drawn north and south through Maybert to a junction with Middle Fork of Yuba have been torn up in all directions by the hydraulic giants. Vast masses of debris have resulted. Some of this still lies on the flats and slopes in irregular heaps of coarse...
Seite 195 - Leiberg. 1902. 194 pp., 12 pis. Besides the foregoing, three volumes on forestry have been published, as Part V of the Nineteenth, Twentieth, and Twenty-first annual reports, each consisting of several papers. / Correspondence should be addressed to — THE DIRECTOR, UNITED STATES GEOLOGICAL SURVEY, WASHINGTON, DC DECEMBER, 1902.