In the “Life, Times, &c.,” page 20, we have a view of the deep grooves cut in that side of the Citadel of Raglan Castle, on which the Marquis of Worcester’s Water-works were situated. The grooves would admit the insertion of pipes of about one foot external diameter, either round, or square, and they would carry water nearly twenty-five feet high. In the early use of his engine, he may have forced the water direct from the boiler, or by the using of an independent boiler, as employed by Porta, in 1606; but either way, the arrangement of his Raglan works would seem to have been that of employing a main vertical pipe for each boiler or receiver, instead of each receiver being connected with a four-way cock with one vertical pipe, or “aquaduct.”
With these observations we close our comments on the various articles of the “Century,” after having supplied a mass of most important references to contemporary and earlier scientific authors; as well as offered several entirely new solutions; and reduced the problematical character of this singularly interesting work to one only, being No. 56, which alone remains open to the charge of being a paradox.
Footnotes
[A] See, at page [263], M. Sorbière’s enumeration of inventions considered exceedingly curious in 1663.
[B] A letter from lord Herbert, to Mon. Grubendol, London. MSS. in the Library of the Royal Society. His Lordship alludes to M. Grollier de Servière’s Cabinet, of which a Catalogue was published at Lyon, 1719.
[C] The Life of the Rt. Hon. Francis North, Baron of Guilford, Lord Keeper of the Great Seal, under King Charles II, and King James II. By the Hon. Roger North. 2nd ed. 2 vols. 8vo. 1808. Vol. 2, p. 251.
[F] See [Appendix B.]
[G] The Marquis, in the 19th article of the “Century,” twice alludes to “a child;” and patenting his invention, which applied to Coaches, he introduces the expression in the 3rd article of his patent of 1661:—“a child of six years old may secure from danger all in the coach,” and “the child being able” to loosen the horses.