Rare Books

Description of a glass apparatus for making mineral waters, like those of Pyrmont, Spa, Seltzer, &c. in a few minutes, and with a very little expence: : together with the description of some new eudiometers, or instruments for ascertaining the wholesomeness of respirable air; and the method of using these instruments: in a letter to the Rev. Dr. Priestley, LL.D. F.R.S