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Reflections upon friction. With a plan of the new machine for taking it off in wheel-carriages, windlasses of ships, &c. Together with metal proper for the machine, and full directions for making it. To which is annexed, Stonhenge, one of the wonders of the world, unriddled. By C. Varlo, Esq; author of The new-invested machine, and of the new system of husbandry.
- Varlo, Charles, approximately 1725-approximately 1795.
- MDCCLXXII. 
About this work
London : Printed for the author, MDCCLXXII. 
, 29,  p. , plate ; 40.