[The work is entitled _An Essay explanatory of the Tempest Prognosticator in the Building of the Great Exhibition for the Works of Industry of all Nations_, read before the Whitby Philosophical Society, Feb. 27, 1851, by George Merryweather, M.D., the Designer and Inventor: London, John Churchill, Princes Street, Soho, 1851.] _Edward Spencer's Marriage._--Can any reader supply me with particulars of the marriage of Edward Spencer of Rendlesham, co. Suffolk, and Grosvenor Square, who lived in the early part of the last century, and whose daughters married the Duke of Hamilton and Sir James Dashwood? CHARLES BRIDGER. Keppel St., Russell Sq. [The following entry is given in Davy's Suffolk Collections (Add. MSS. 19,097., p. 272.): "Edward Spencer, son of John Spencer, Esq., ob. 1718. Edward, now living at Naunton Hall, is a barrister-at-law. He married Anne, the only daughter of William Baker of Layham, clerk, by whom he had issue Henry Spencer, who died an infant, and Ann Spencer, their only daughter, and now living." This extract is copied from Hawes's MSS., the date of which, unfortunately, is not given.] {274} _Yew-tree at Crowhurst._--Could any of your readers inform me of the age of the yew-tree in Crowhurst Churchyard, Sussex? C. BOWMER. [Decandolle assigns an antiquity of fourteen and a half centuries to this remarkable yew. See a valuable article on the "Age of Trees" in our fourth volume, p. 401.] * * * * * Replies. THE ELECTRIC TELEGRAPH IN 1753. (Vol. viii., p. 364.) As no reply has yet been given to the Query of INQUIRENDO as to who was C. M., who described in the _Scots Magazine_, vol. xv. p. 73., as long since as 1753, the electric telegraph, and as the article itself is one of great interest in the history of an invention which is justly considered one of the greatest wonders of our own times, I send a transcript of it, by way of satisfying the natural curiosity of many readers who may not have an opportunity of consulting it in the magazine in which it originally appeared, and also because the doing so may stimulate farther inquiry, and lead to the discovery of its ingenious writer, C. M. of Renfrew. "Renfrew, February 1, 1753. "Sir,