John Purdy (1773–1843) was an important English hydrographer. His work and influence extended beyond hydrography with the coinage of the term pharology, the study of modern lighthouses and their designs. Purdy's work Memoir, descriptive and explanatory, to accompany the New Chart of the Atlantic Ocean was adapted and improved; continuing to be released in its fifteenth edition fifty years after his death. (From Wikipedia)
More about John Purdy:Books by John Purdy:
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Purdy, John, 1773-1843: The Colombian Navigator: or, Sailing Directory for the American Coasts and the West-Indies (2 volumes; London: Printed for R. H. Laurie, 1823-1824) (page images at HathiTrust)
Additional books by John Purdy in the extended shelves:
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Purdy, John, 1773-1843: The British American navigator : a sailing directory for the island and banks of Newfoundland, the Gulf and River of St. Lawrence, Breton Island, Nova Scotia, the Bay of Fundy, and the coasts thence to the River Penobscot, etc. (Printed for R.H. Laurie, 1847), also by Alexander G. Findlay (page images at HathiTrust)- Purdy, John, 1773-1843: The British American navigator a sailing directory for the island and banks of Newfoundland, the Gulf and River of St. Lawrence, Breton Island, Nova Scotia, the Bay of Fundy, and the coasts thence to the River Penobscot, etc. (Printed for R.H. Laurie, 1847), also by Alexander George Findlay (page images at HathiTrust)
- Purdy, John, 1773-1843: The British American navigator a sailing directory for the island and banks of Newfoundland, the gulf and river of St. Lawrence, Breton Island, Nova Scotia and the coasts thence to Boston, etc. (Published for R.H. Laurie, 1862), also by Alexander George Findlay (page images at HathiTrust)
- Purdy, John, 1773-1843: The Colombian navigator; or, Sailing directory for the American coasts and the West-Indies ... (R.H. Laurie, 1839) (page images at HathiTrust)
- Purdy, John, 1773-1843: Description nautique des côtes de l'Afrique occidentale comprises entre le Sénégal et l'Equateur (Impr. royale, 1846), also by Louis-Edouard Bouët-Willaumez and Paul Antoine Marie Fleuriot Langle (page images at HathiTrust)
- Purdy, John, 1773-1843: An investigation of the currents of the Atlantic Ocean, and of those which prevail between the Indian Ocean and the Atlantic (Published for Lady Rodd by J.G. & F. Rivington, 1832), also by James Rennell (page images at HathiTrust)
- Purdy, John, 1773-1843: Memoir, descriptive and explanatory, of the Northern Atlantic Ocean and comprising instructions, general and particular, for the navigation of that sea (Printed by and for R.H. Laurie, 1861), also by Alexander George Findlay (page images at HathiTrust)
- Purdy, John, 1773-1843: Memoir, descriptive and explanatory : to accompany the new chart of the Atlantic ocean and comprising instructions, general and particular, for the navigation of that sea (Printed for R.H. Laurie, 1825) (page images at HathiTrust)
- Purdy, John, 1773-1843: Memoir, descriptive and explanatory, to accompany the new chart of the Ethiopic or southern Atlantic Ocean, with the western coasts of South-America, from Cape Horn to Panama ... composed from a great variety of documents, as enumerated in the work (R.H. Laurie, 1822) (page images at HathiTrust)
- Purdy, John, 1773-1843: New and accurate piloting directions for the Gulf of Finland: including a general description of that sea,of its coasts,harbours,and islands. (London, 1821) (page images at HathiTrust)
- Purdy, John, 1773-1843: The New sailing directory for the island and banks of Newfoundland, the gulf and river of St. Lawrence, Breton Island, Nova Scotia, the Bay of Fundy and the coasts thence to Portland, Boston, Cape Cod, &c. (Printed for R.H. Laurie, 1827) (page images at HathiTrust)
- Purdy, John, 1773-1843: The new sailing directory for the Strait of Gibraltar and the western division of the Mediterranean Sea : comprehending the coasts of Spain, France, and Italy, from Cape Trafalgar to Cape Spartivento ; the Balearic Isles, Corsica, Sardinia, Sicily, and the Maltese Islands ; with the African coast, from Tangier to Tripoli. (R.H. Laurie, 1832) (page images at HathiTrust)
- Purdy, John, 1773-1843: The new sailing directory for the Strait of Gibralter and the western division of the Mediterranean Sea, comprehending the coasts of Spain, France, and Italy, from Cape Trafalgar to Cape Spartivento, the Balearic Isles, Corsica, Sardinia, Sicily and the Maltese Islands, with the African coast, from Tangier to Tripoli, inclusive ... Improved, by considerable additions, to the present times (R. H. Laurie, 1840) (page images at HathiTrust)
- Purdy, John, 1773-1843: Sailing directory for the island and banks of Newfoundland, the gulf and river of St. Lawrence, Breton Island, Nova Scotia, the Bay of Fundy, and the coasts thence to the River Penobscott, &c. (Printed for R.H. Laurie, 1843), also by Alexander George Findlay (page images at HathiTrust)
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