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Since scarce any thing, especially what relates to Mechanical Contrivances, may be said to have attained such a Perfection as not to want any Improvement, it may not be amiss to undertake the Improvement of those Inventions that Time out of Mind have been practised, as well as to invent Engines to do those Services that have been effected by mere Labour.

philosophical transactions of the royal society of london

I. A description of a new invention of bellows, called water-bellows, by Martin Triewald, F. R. S. Captain of mechanics, and military architect to his Swedish majesty; communicated to the Royal Society by Sir Hans Sloane, Bart Pres. R. S. &c