 Weeds and shell fish readily adhere to the poisonous salts of lead which form upon the lead protecting the fore part of the keel ; and to the copper, in any chemical combination in which it is insoluble. In general, in ships in the navy the first effect...  Van Nostrand's Engineering Magazine - Page 2151886Full view - About this book
 | 1825 - 1070 pages
...upon the lead protecting the fore part of the keel ; and to the copper, in any chemical combination in which it is insoluble. In general, in ships in...which form upon the head of the nail and in the space round it, defend the metal from the action of sea water ; and being negative with respect to it, a... | |
 | 1826 - 510 pages
...upon the lead protecting the fore part of the keel ; and to the copper, in any chemical combination in which it is insoluble. In general, in ships in...which form upon the head of the nail and in the space round it, defend the metal from the action of sea water ; and being negative with respect to it, a... | |
 | Sir Richard Phillips - 1830 - 728 pages
...upon the lead protecting the fore-part of the keel ; and to the copper, in any chemical combination in which it is insoluble. " In general, in ships in...which form upon the head of the nail and in the space round it, defend the metal from the action of sea water ; and being negative with respect to it, a... | |
 | John Davy - 1836 - 436 pages
...for sea weeds and insects ; and unusual corrosion at a little distance. " In general (he observes), in ships in the navy, the first effect of the adhesion...which form upon the head of the nail, and in the space round it, defend the metal from the action of sea water ; and being negative with respect to it, a... | |
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