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Porter, J .H.

Author of Porters' New System of Mathematics w/ addition of a complete Ready Reckoner, published in CT in 1843.

 



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    Porters' New System of Mathematics: With the addition of a complete Ready Reckoner. For the use of farmers and mechanics. 1843

    Porters' New System of Mathematics: With the addition of a complete Ready Reckoner. For the use of farmers and mechanics.

    A ready reckoner including instruction on how to convert circulating currency and monies of account.

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      Porter, J .H.
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