Date: | 07 22 1827 |
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Description: | Letter from Benjamin Sillman to Increase Lapham requesting information about the canal around the rapids of the Ohio River for inclusion in The Journal ... |
Date: | 1832 |
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Description: | Page from the handwritten index to Lapham's Notes and accounts of canals, particularly the Ohio Canal near Portsmouth, 1830-1832. |
Date: | 1828 |
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Description: | Increase Lapham's drawing and description of an earth borer for his handwritten manuscript, Notes and Accounts of Canals, Particularly the Ohio Canal Ne... |
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