"Circular Wheel Teeth" Typescript memoir bound with two booklets: Booklet: Archibald Sharp, "A New Method of Designing Wheel-Teeth", Proceedings of the Institution of Civil Engineers, Vol 113, (1894). Typescript memoir "Circular Wheel-Teeth" by Archibald Sharp [annotated "This paper will be published in the Proceedings of the Institution of Civil Engineers"]. Booklet: O Henrici, "ber Instrumente zur Harmonischen Analyse", Katalog der Mathematischen Ausstellung zu Nrnberg, (September 1892). c1894