M. Sorbière’s Dedication of his narrative to the King is dated 12th December, 1663, so that it is possible the _Century_ had been published previous to the visit he has just described, and it is worthy of notice that he expresses no difficulty in obtaining access to the exhibition of the machine, which gives colour to the belief that it was on public view, for the purpose of establishing a company to carry out the invention on a large scale. Vauxhall, as it is now called, was variously designated Fox-hall, Faukeshall, Fulke’s Hall, corruptions of a derivation from Fulke de Breauté, who built a mansion in the manor of South Lambeth, long known as Fulke’s-hall.[94] In 1652, the Parliament having determined that Vauxhall-house, which had been reserved by a former order, should be sold, it was purchased by John Trenchard of Westminster. After the Restoration it was leased to Henry Lord Moore, afterwards Earl of Drogheda, together with the demesne lands of Kennington for 31 years; with a proviso, that if his Majesty should think fit to make use of the house, or any part thereof, it should be surrendered upon a proper allowance being made for the same. The King, availing himself of this proviso the year after the lease was granted, settled Casper Kaltoff, a Dutchman, at Vauxhall, who was employed in making guns and other warlike implements for government service.[65] By an Act of the House of Commons, 17th of July, 1649, for the sale of the houses, &c. of the late King, Queen, and Prince, it is provided that “it should not extend to the house called Vaux Hall, nor to the grounds, houses, buildings, _models_, utensils, or other necessaries for _practical inventions therein contained_; but that they should remain for the use of the Commonwealth, to be employed and disposed of by the Parliament, as they shall think fit.”[3] Now the mention of _inventions_ and _models_, taken in connection with recent facts, would lead to the inference that the Marquis of Worcester might have been much earlier associated with practical experiments at Vauxhall than at first appears. On this point he was always reserved, even in his _Century_ only cautiously alluding to Kaltoff as being “in a place by my great expenses made fit for public service, yet lately like to be taken from me.” Among the manuscripts of the Royal Society is a letter from Samuel Hartlib, the author of works relating to Husbandry, addressed to the Honourable Robert Boyle,[14] dated Amsterdam, May the 18th, 1649, in which he remarks:[104]--“Fauxhall is to be set apart for public uses, by which is meant making it a place of resort for artists, mechanics, &c. and a dépôt for models and philosophical apparatus.” It is further proposed, that “experiments and trials of profitable inventions should be carried on,” which, says Hartlib, “will be of great use to the Commonwealth.” Adding that the late King (Charles I.) “designed Fauxhall for such an use.”