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Books by Publisher: Heard & Sons

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The Miner"s Manual of Arithmetic and Surveying, Containing the Usual Calculations Employed By The Miner, Those Required at the Copper Ticketing, the Mode of Estimating the Value of Ore in a Lode, & Etc
The Miner"s Manual of Arithmetic and Surveying, Contai…
By: William Rickard
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