Account of the qualities and uses of coal tar and coal varnish. With certificates from shipmasters and others / [Anon].
- Archibald Cochrane, 9th Earl of Dundonald
- Date:
- 1785
Licence: Public Domain Mark
Credit: Account of the qualities and uses of coal tar and coal varnish. With certificates from shipmasters and others / [Anon]. Source: Wellcome Collection.
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![[ *7 ] t feams and bottom payed at Kincardine in April, before fhe failed on her voyage to St, Peterf- burg, with the coal tar made at Culrofs, by the Right Honourable the Earl of Dundonald, and, notwithftanding her having performed faid voyages, when I left her at London, her bottom and feams were as tight and clean, free of weeds, grafs, or barnacles, as when fhe left the Frith of Forth. I would, therefore, recommend it to all fhip-mafters, as by far the bed Huff for pre- ferving and keeping clean fhips bottoms that ever 1 yet faw or heard of, I alfo payed the wa¬ ter-ways and cover-boards of faid fhip, and found that it penetrated fo much into the wood, that I was obliged to give it three coats before it would ftay on the furface, on which account it muft be an excellent prefervative for wood, and would recommend it as fuch to every perfon that may have occafion for it. (Signed) ROBERT NICHOLSON. Copy of a Certificate, Mr, George Ritchie. Leith, January 7, 1784. ^PHIS is to certify, that I graved the fhip Friendfhip, of Leith, under my command, in June laid, with the coal tar from the works at Culrofs, belonging to the Right Honourable the Earl of Dundonald. Since then, the fhip has made three voyages to London, and I find that no grafs nor vermin has grown on the fhip’s bottom \ and that two barrels of the faid tar will go as far in graving a fhip’s bottom, as three bar¬ rels of any ocher tar that I have ufed,](https://iiif.wellcomecollection.org/image/b30371569_0027.jp2/full/800%2C/0/default.jpg)
