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Harper's Encyclopedia of United States History (ed. Benson Lossing) 4 0 Browse Search
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Harper's Encyclopedia of United States History (ed. Benson Lossing), Blake, William Phipps, 1826- (search)
Blake, William Phipps, 1826- Mineralogist; born in New York, June 1, 1826; was graduated at Yale Scientific School in 1852. He was the geologist and mineralogist for the United States Pacific Railroad expedition in 1853; edited the Mining magazine in 1859-60; and afterwards engaged in mining, engineering, and exploration. In 1864 he became Professor of Mineralogy and Geology in the College of California. In 1901 he was director of the School of Mines in the University of Arizona, and also Territorial geologist. He has been identified with the great international expositions since 1853. He is the author of Geological reconnoissance of California; Silver-ores and silver-mines; Ceramic art and glass; Life of Captain Jonathan mix, etc.
Harper's Encyclopedia of United States History (ed. Benson Lossing), Electricity in the nineteenth century. (search)
he history of the world a structure of copper wire and iron spoke to a listening ear. The instruments were, moreover, the acme of simplicity. Within a year many a boy had constructed a pair of telephones at an expenditure for material of only a few pennies. The transmitter was only suited for use on short lines, and was soon afterwards replaced by various forms of carbon microphone transmitters, to the production of which many inventors had turned their attention, notably Edison, Hughes, Blake, and Hunnings. Few of those who talk between Boston and Chicago know that in doing so they have for the exclusive use of their voices a total of over 1,000,000 lbs. of copper wire in the single line. There probably now exist in the United States alone between 75,000 and 100,000 miles of harddrawn copper wire for long-distance telephone service, and over 150,000 miles of wire in underground conduits. There are upward of 750,000 telephones in the United States, and, including both overhea