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The working drawings of John Smeaton, civil engineer. They illustrate his researches on waterwheels and applied mechanics, and the relative efficiency of overshot as opposed to undershot wheels. With supplementary engravings and manuscript notes.

Notebooks and papers of Benjamin Robins, consisting of a miscellaneous notebook primarily on gunnery and fortification (MS 39), a commonplace book (MS 46), a box of miscellaneous papers (MS 130) and a letter to Martin Folkes enclosing a written message from the Chevalier Ossorio, Envoy from the King of Sardinia, on the proper charge of cannon (MS 139).