Periodical Information circular Circ. 8407
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Image 1 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 2 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 3 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 4 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 5 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 6 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 7 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 8 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 9 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 10 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 11 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 12 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 13 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 14 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 15 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 16 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 17 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 18 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 19 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 20 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 21 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 22 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 23 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 24 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 25 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 26 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 27 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 28 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 29 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 30 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 31 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 32 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 33 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 34 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 35 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 36 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 37 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 38 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 39 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925
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Image 40 of Circ. 8407
IC | Bureau of Mines information circular- Contributor: United States. Bureau of Mines
- Date: 1925