Page:A Letter on the Subject of the Cause (1797).djvu/18

, that the ſaid doth not intend that any Thing in the Fourth Article ſhall be underſtood to extend to any Engine where the Water to be raiſed enters the Steam Veſſel itſelf, or any Veſſel having an open Communication with it.

JAMES WATT.

conſidering the part arranged in this Specification, I cannot obſerve that the words there uſed, create in the mind of the Reader any new idea reſpecting the conſtruction, proportion, or office, of that part of an Engine, properly called the ſteam cylinder. Nor do they tend to impregnate the underſtanding of a perſon well ſkilled in the fabrication of common Engines, with any image of an improvement: there being no alteration either propoſed, or ſpecified, relative to the various circumſtances which conſtitute this part of a Steam Engine in a working ſtate. The enquirer is left wholly uninformed, whether the intended cylinder, or ſteam veſſel is to be left open at top, and ſhut at