. Archives of useful knowledge. ch below its level ascircumstances will admit; it should be furnished with catch-pallsas well as the windlass. Besides the advantages already stated, my proposed improve-ment to the capstan has others of considerable utility. Its con-struction is so very simple, that it is no more liable to derange-ment or injury than the capstan itself. Its cost can be but small,and every part of it can be made by a common ship carpenter,and be repaired by him at sea if damaged by shot. It will takeup but little room, only that of an half-barrel cask ; and it is of anature so a
. Archives of useful knowledge. ch below its level ascircumstances will admit; it should be furnished with catch-pallsas well as the windlass. Besides the advantages already stated, my proposed improve-ment to the capstan has others of considerable utility. Its con-struction is so very simple, that it is no more liable to derange-ment or injury than the capstan itself. Its cost can be but small,and every part of it can be made by a common ship carpenter,and be repaired by him at sea if damaged by shot. It will takeup but little room, only that of an half-barrel cask ; and it is of anature so analogous to that kind of machinery to which sailorsare accustomed, that it can be readily understood and managedby them. In order to render the description of my double capstan moreclear, I annex a sketch of it, as fitted up in the manner proposed. I am. Sir,Your very respectful humble servant, J. WHITLEY BOSWELL. To C. Taylor, M. D. Sec. Reference to the Cut of Mr. Boswells improved Capstan, to prevent thenecessity of ON OBVIATING THE EFFECTS OF HUNGER, &C. AT SEA. 211. A Represents the larger or common capstan used on boardships. B Another capstan of less dimensions, placed in a similarmanner. C The coils of the messenger passing alternately round thelarge and small capstans, but with their direction reversed on thedifferent barrels, so that they may cross each other in the inter-val between them. D D D D Projecting rings round each capstan or barrel, soiixed on the two barrels, that those on one barrel should be ex-actly opposite the middle of the intervals between those on theother barrel. ACCOUNT OF THE MEANSWhich have been used with success, in obviating the efFects of HUNGER, COLD, AND THIRST, AT SEA. The following observations constitute part of an introduction to a very inter^esting Narrative of the hardships which Mr. David Woodard, and four sea-men suffered, while in a boat at sea.* THE conclusions to be drawn from this narrative and collec-tion, and from a
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