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The windmill: its efficiency and economic use, Part I
No abstract available.
Authors
Edward C. Murphy
The windmill: its efficiency and economic use, Part II
No abstract available.
Authors
Edward C. Murphy
Twenty-First Annual report of the Director of the United States Geological Survey, 1899-1900: Part III - General geology. Ore and phosphate deposits, Philippines
No abstract available.
Authors
Charles D. Walcott
Twenty-First Annual report of the Director of the United States Geological Survey, 1899-1900: Part IV - Hydrology
No abstract available.
Authors
Charles D. Walcott
Twenty-First Annual report of the Director of the United States Geological Survey, 1899-1900: Part VI - Mineral Resources of the United States, 1899, metallic products, coal, and coke
No abstract available.
Authors
Charles D. Walcott
Twenty-First Annual report of the Director of the United States Geological Survey, 1899-1900: Part VII - Texas
Area treated.—The Black and Grand prairies of Texas and southern Indian Territory comprise about 50,000 square miles (see Pl. LXV, in pocket)—an area equal to that of fifty of the quadrangles mapped and described by the United States Geological Survey in its Geologic Atlas of the United States. The accompanying general geologic map (Pl. LXVI, in pocket) is a condensed presentation of the geology u
Authors
Charles D. Walcott
Twenty-second Annual report of the Director of the United States Geological Survey, 1900-1901: Part II - Ore deposits
No abstract available.
Authors
Charles D. Walcott
Washington folio, District of Columbia-Maryland-Virginia
No abstract available.
Authors
Nelson Horatio Darton, Arthur Keith
Preliminary report on the Cape Nome gold region, Alaska
The following report is based on a few weeks' examination of the recently discovered Nome gold-mining region, made by us in October, 1899. We collected such topographic and geologic data of this important region as the climatic conditions would permit and our limited time would allow, the trip to Nome being a hurried utilization of a delay while waiting for a steamer for Seattle after the completi
Authors
Frank C. Schrader, Alfred H. Brooks
Volcanics of Neponset valley, Massachusetts
While the igneous rocks of the Boston basin have been the subject of considerable investigation and discussion, the volcanics of the limited portion of the basin drained by the Neponset river have received little attention. No petrographic study has been made of these volcanics.Recently Professor W. O. Crosby afforded the writer an opportunity to visit this district and to collect specimens, and f
Authors
Florence Bascom