Book/Printed Material Extracts from a paper read before the State geological society,
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Image 1 of Extracts from a paper read before the State geological society, VST TN All Extracts From the Proceedings of the California State Geological Society ra Published in the Alta California 1878 ca 1 ey a MOV 15 1879 ALTA PRINT- Contributor: Attwood, Melville
- Date: 1878
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Image 2 of Extracts from a paper read before the State geological society,- Contributor: Attwood, Melville
- Date: 1878
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Image 3 of Extracts from a paper read before the State geological society,- Contributor: Attwood, Melville
- Date: 1878
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Image 4 of Extracts from a paper read before the State geological society,- Contributor: Attwood, Melville
- Date: 1878
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Image 5 of Extracts from a paper read before the State geological society, Published in the Alta California September 15 1878 Extracts From a Paper read before the State Geological Society By MELvILLE Atrwoop Esoa On an Improved Form of Batéa or Goldwashers Prospecting Bowl…- Contributor: Attwood, Melville
- Date: 1878
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Image 6 of Extracts from a paper read before the State geological society, particles as clean and rapidly as I wished induced me to make further alterations After many trials and much trouble I succeeded in getting the form I now use Those persons accustomed…- Contributor: Attwood, Melville
- Date: 1878
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Image 7 of Extracts from a paper read before the State geological society, 5 partly assisted also by striking one side of the bowl occasionally so as to arrest the course of the particles for the moment and finally several different layers or lines of…- Contributor: Attwood, Melville
- Date: 1878
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Image 8 of Extracts from a paper read before the State geological society, Mr John Roach the wellknown optician of Mont gomery street has used the batéa for some time to assist him in some of his metallurgical investigations and has generally a few of…- Contributor: Attwood, Melville
- Date: 1878
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Image 9 of Extracts from a paper read before the State geological society, Yr different auriferous veinstones met with in our Cali fornia mines Telluric the Only Ore of GoldNo Such Thing as Rebellious Gold Ores In the first place however I wish to call…- Contributor: Attwood, Melville
- Date: 1878
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Image 10 of Extracts from a paper read before the State geological society, 10000 holes to the square inch Now the stamped veinstone issuing from our mills is associated with gold in four different states FirstFree gold capable of concentration with water SecondLaminated gold easily…- Contributor: Attwood, Melville
- Date: 1878
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Image 11 of Extracts from a paper read before the State geological society, could be manufactured direct from the ore by the Catalan process shoes dies tapets and cams at a cost considerably less than what is paid for ordinary castings made of imported foreign…- Contributor: Attwood, Melville
- Date: 1878
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Image 12 of Extracts from a paper read before the State geological society, 10 of gold is rarely seen previous to concentration in any of the veinstones from this mine The loss in gold by amalgamation of the concentrated pyritic matter sul phurets in wooden…- Contributor: Attwood, Melville
- Date: 1878
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Image 13 of Extracts from a paper read before the State geological society, 11 clogs up in the mortars so that in stamping if any gold quartz can be obtained it is better to mix them together To illustrate what I mean a pretty test…- Contributor: Attwood, Melville
- Date: 1878
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Image 14 of Extracts from a paper read before the State geological society, 12 wool with the nap thrown up on one side altogether a much better article than is now furnished to the different mills In comparing the reports from the different Superin tendents…- Contributor: Attwood, Melville
- Date: 1878
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Image 15 of Extracts from a paper read before the State geological society, 13 which result must also be added the cleaning up from the mortars We too often hear of patents being applied for for some new and mysterious process for the treatment of…- Contributor: Attwood, Melville
- Date: 1878
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Image 16 of Extracts from a paper read before the State geological society, 14 in reference to it many still wishing to believe that there are such things as rebellious gold ores so that I have again taken up the subject though it would be…- Contributor: Attwood, Melville
- Date: 1878
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Image 17 of Extracts from a paper read before the State geological society, 15 the presence of a menstruum which dissolving the metals deprives them of their form and appearance and all the other combinations of metals as likewise the disguises of native metals in…- Contributor: Attwood, Melville
- Date: 1878
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Image 18 of Extracts from a paper read before the State geological society, 16 600 feet stamps duty with heads 135 working days 35544 tons stamped 62745 tons per day 17653 In their report of June 1867 they stamped 60685 tons with a loss of…- Contributor: Attwood, Melville
- Date: 1878
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Image 19 of Extracts from a paper read before the State geological society,- Contributor: Attwood, Melville
- Date: 1878
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Image 20 of Extracts from a paper read before the State geological society,- Contributor: Attwood, Melville
- Date: 1878
About this Item
Title
- Extracts from a paper read before the State geological society,
Names
- Attwood, Melville, 1812-1898.
Created / Published
- [San Francisco, Alta print, 1878]
Headings
- - Gold--Milling
- - Mines and mineral resources--California
Notes
- - Caption title.
- - "On the milling of auriferous vein-stones": p. 6-13. "Mineralisation of gold": p. 13-16.
- - "Published in the Alta California September 15, 1878."
- - Also available in digital form.
Medium
- [3]-16 p. 23 cm.
Call Number/Physical Location
- TN411 .A88
Library of Congress Control Number
- 06022352
OCLC Number
- 21327863
Online Format
- online text
- image