Miscellaneous correspondence and papers regarding engineering and new inventions. The correspondents include W. Cubitt, F. Bashforth, J.T. Chance, E. Sabine, M. Faraday, E. Hodgkinson, G. Peacock, W. Denison and W.H. Smyth. Many of the papers are printed, and some are pamphlets or circulars. The subjects include lights, logs, slide values, paddle wheels, cement and elliptographs. There are also calculations on the motion of a pendulum, the friction of ropes and a ship passing through waves.