“And other part of the said ground still more N. used for a yard or garden, containeth in length from the last mentioned great garden to the mansion house of Foxhall, about 144 feet, and in breadth from a range of pales, dividing this and the said Jacobson’s part, to the said highway about 98 feet.--On the E. side whereof (next the said way) is erected a long range of building, used for a working house, containing in length about 132 feet, and in breadth (from out to out) about 20 feet, two stories high, besides garrets. “At the N. end of which working house there is a cross building erected, of the same height, part used for a forging house, and the rest for dwelling; extending from the said highway W. about 46 feet in breadth from out to out. “Still more W. is the chief mansion house, extending W. from the last mentioned building about 46 feet more in length, and about 24 feet in breadth, three stories high, besides garrets and cellars, with a stair-case built out cross on the N. side thereof about 18 feet square.” The remaining portion of the report concerns property on the north side let to another tenant; to stables, and to outhouses; concluding with an opinion that the whole, when repaired, would render a lease for 31 years worth £100 per annum. We thus ascertain that the “Working house,” as it is here called (the “Operatory” named in the petition), where Caspar Kaltoff and his engineers worked, and in or near which the first great public exhibition of the “Water-commanding Engine” was consummated, occupied a considerable space of crown property. It was no exposition of questionable utility that was there offered to public view. And that it was public is every way certain, and, indeed, there could be no reasonable occasion for its being otherwise, after being fully protected for ninety-nine years by Act of Parliament. Besides, in no other way would it have been possible to obtain a sufficient proprietary, such as was evidently sought by the publication made by the Act itself, and apparently also by the distribution of large posting bills; of which latter a curious specimen still exists in the archives of the British Museum.[N] It was the Marquis of Worcester’s misfortune, being involved in heavy debt, to be necessitated to seek pecuniary benefit from his great invention. What means were particularly adopted, beyond setting up a practical illustration at Vauxhall, it is impossible to ascertain, but he would most likely engage the services of one or more active business agents. That a public company was intended to be carried out by means of several shareholders, is also highly probable, judging from remarks occasionally made by himself, and from the dispersion of placards and similar written statements, headed a “Definition” of the Engine.