The Theory of Continous Calculating Machines and of a Mechanism of this class on a New Principle. Received and Read June 19, 1884.

London, Harrison and Sons, 1886. 4to. No wrappers as extracted from "Philosophical Transactions", 1885. Vol. 176 - Part II, Pp. 367-402 a. 34 textillustr. First appearance of an importent paper in the history of calculating machines."In his first year at Liverpool he published a paper on 'The theory of continuous calculating machines and of a mechanism of this class on a new principle' in the prestigious Philosophical Transactions of the Royal Society. This work investigated how to advance the design of integrator mechanisms and fit them for tasks more complex than mere numerical calculating machines, and was extremely important in the development of analogue computing."(Jane Carruthers).