‎"WILDE, HENRY.‎
‎On the Multiple Proportions of the Atomic Weights of Elementary Substances in relation to the unit of Hydrogen.‎

‎Manchester, The Manchester Literary and Philosophical Society, 1895. 8vo. In the original printed wrappers. Offprint from ""Memoirs and Proceedings of the Manchester Literary and Philosophical Society"", Ninth [9] volume, Fourth series. With author's presentation inscription to top of front wrapper: ""With the Author's Compliments."". Front wrapper loose and back wrapper detached, light miscolouring to wrappers. Internally fine and clean. Pp. 67-85 + 1 folded plate.‎

Reference : 48037

‎Scarce offprint issue, with author's presentation inscription, of Wilde's contribution to helium and its place in the natural classification. Henry Wilde (1833 - 1919) a wealthy individual from Manchester, England who used his self-made fortune to indulge his interest in electrical engineering. He invented the dynamo-electric machine, or self-energising dynamo, published in 1866. The machine was considered remarkable at the time, especially since Wilde was fond of spectacular demonstrations, such as the ability of his machine to cause iron bars to melt.‎