Search Results
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2 items
Letter from Edward N. Kent to James Curtis Booth, January 8, 1857
- 1857-Jan-08
Edward N. Kent of the United States Assay Office at New York discusses uses of mercury in gold refining.
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3 items
Letter from Edward N. Kent to James Curtis Booth, December 16, 1856
- 1856-Dec-16
Edward N. Kent of the United States Assay Office at New York solicits testimony to be presented before Congress as to the efficacy of his sweeps.
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3 items
Letter from Edward N. Kent to James Curtis Booth, October 9, 1856
- 1856-Oct-09
Edward N. Kent of the United States Assay Office at New York outlines an improved plan for working the sweeps.
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2 items
Letter from Edward N. Kent to James Curtis Booth, August 29, 1856
- 1856-Aug-29
Edward N. Kent of the United States Assay Office at New York submits an order for one dozen large acid pitchers.
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2 items
Letter from Edward N. Kent to James Curtis Booth, August 26, 1856
- 1856-Aug-26
Edward N. Kent of the United States Assay Office at New York requests a supply of large acid pitchers.
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3 items
Letter from Edward N. Kent to James Curtis Booth, June 24, 1856
- 1856-Jun-24
Edward N. Kent of the United States Assay Office at New York contains a printing circular describing Kent's Patent Apparatus for Separating Gold as described in his letter of March 7, 1855.
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2 items
Letter from Edward N. Kent to James Curtis Booth, May 30, 1856
- 1856-May-30
Edward N. Kent of the United States Assay Office at New York reports on the monetary value of sweeps.
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3 items
Letter from Edward N. Kent to James Curtis Booth, December 14, 1855
- 1855-Dec-14
Edward N. Kent of the United States Assay Office at New York discusses the installation of two coils for silver-drying closets.
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2 items
Letter from Edward N. Kent to James Curtis Booth, November 21, 1855
- 1855-Nov-21
Edward N. Kent of the United States Assay Office at New York writes to inform James Curtis Booth (1810-1888) that he prefers to use hard-wood charcoal from New York rather than depend upon supplies from Philadelphia.
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3 items
Letter from Edward N. Kent to James Curtis Booth, November 19, 1855
- 1855-Nov-19
Edward N. Kent of the United States Assay Office at New York expresses the hope that he will receive the patents for his sifting sweeps machine "very soon."
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3 items
Letter from Edward N. Kent to James Curtis Booth, October 20, 1855
- 1855-Oct-20
Edward N. Kent of the United States Assay Office at New York writes concerning a controversy regarding Kent's use of James Curtis Booth's (1810-1888) correspondence.
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3 items
Letter from Edward N. Kent to James Curtis Booth, October 18, 1855
- 1855-Oct-18
Edward N. Kent of the United States Assay Office at New York writes to thank James Curtis Booth (1810-1888) for his kind words regarding Kent's sweeps washing apparatus.
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2 items
Letter from Edward N. Kent to James Curtis Booth, September 18, 1855
- 1855-Sep-18
Edward N. Kent of the United States Assay Office at New York discusses monetary values of gold and silver ores retrieved via his newly invented sifting machinery.
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3 items
Letter from Edward N. Kent to James Curtis Booth, August 11, 1855
- 1855-Aug-11
Edward N. Kent of the United States Assay Office at New York writes a follow-up from his letter of March 7 to describe the testing of his machine for sifting sweeps.
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3 items
Letter from Edward N. Kent to James Curtis Booth, March 7, 1855
- 1855-Mar-07
Edward N. Kent of the United States Assay Office at New York describes a machine he devised intended for sifting sweeps.
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3 items
Letter from Edward N. Kent to James Curtis Booth, November 13, 1854
- 1854-Nov-13
Edward N. Kent of the United States Assay Office at New York writes to James Curtis Booth (1810-1888) with a need for two additional furnaces and discusses alterations made to the office.
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2 items
Letter from Edward N. Kent to James Curtis Booth, November 9, 1854
- 1854-Nov-09
Edward N. Kent of the United States Assay Office at New York informs James Curtis Booth (1810-1888) that no vacancies currently exist in the New York office.
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3 items
Letter from Edward N. Kent to James Curtis Booth, October 18, 1854
- 1854-Oct-18
Edward N. Kent of the United States Assay Office at New York requests buckskin gloves and other supplies from James Curtis Booth (1810-1888).
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3 items
Letter from Edward N. Kent to James Curtis Booth, October 11, 1854
- 1854-Oct-11
Edward N. Kent of the United States Assay Office at New York informs James Curtis Booth (1810-1888) of the start-up of the New York assay operations.
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2 items
Bildnisse hervorragender Chemiker und Physiker in Heliogravüre
- Portraits of outstanding chemists and physicists in photogravure
- 1914
Clipping advertising portraits of outstanding chemists and physicists. The advertised portraits will be heliogravure prints, a printing process that uses copper plates to create engravings and the preferred method for…
- Creator Of Work Wilhelm Engelmann
- Subject Photogravure, Chemists, Physicists, Engraving
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2 items
Letter from Edward N. Kent to James Curtis Booth, May 20, 1853
- 1853-May-20
Edward N. Kent of the United States Assay Office at New York advises James Curtis Booth (1810-1888) on the purchase of some spar.
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2 items
Letter from Edward N. Kent to James Curtis Booth, April 13, 1853
- 1853-Apr-13
Edward N. Kent writes to James Curtis Booth (1810-1888) fretting that the position he applied to at the United States Assay Office may be filled politically.
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2 items
Letter from Edward N. Kent to James Curtis Booth, April 9, 1853
- 1853-Apr-09
Edward N. Kent writes to James Curtis Booth (1810-1888) with his decision to apply to the Assayer's position at the Unites States Assay Office in New York.
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2 items
Letter from Edward N. Kent to James Curtis Booth, March 31, 1853
- 1853-Mar-31
Edward N. Kent writes to James Curtis Booth (1810-1888) to solicit advice concerning the position of Assayer at the United States Assay Office at New York.
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Höhere Mathematik-und doch verständlich
- Calculus Made Easy
- 1932
Advertisement for the German translation of Calculus Made Easy (1910), a textbook written by Silvanus P. Thompson (1851-1916) and published by the Academic Publishing Society Leipzig.
