PLATE VI. An Instrument by which Air may be filtrated through Water.
- ...* 1.1 A. A. A Glass Receiver whose Orifice is ad∣apted to the Plate B. B. which is perforated in the Middle by the Tubes C. C. D. D. which are cemented to it.
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* 1.2A Stop-Cock cut transverse, so that the In∣sertions of the Tubes C. C. D. D. into the Stop-Cocks may be perceived.
The Use of this Instrument is as follows, To try how much Air may acquire new Qua∣lities in respect of a Body included with it, we conveigh that Body into the Vessel, and then pouring a sufficient Quantity of Water at the Orifice M. until the Receiver A. A. be half full, and the Vessel L. L. swim up to the Top of it, the Orifice M. is stopped up, which be∣ing done, and the Key so placed, that the Tube C. C. may communicate with the Chink G. G. upon drawing down the Sucker, the Air in the Receiver A. A. will pass through the Pipes C. C. and the Chink G. G. into the Receiver H. H. and from thence into the Pump: Upon which, the Chink in the Stop-Cock being turn'd so as to communicate with the Insertions of the Tube D. D. and then the Sucker being rais'd to the Top of the Cylinder, the Air will be impell'd into the Tube D. D. and emerging through the Water, will rise into the Top of the Receiver A. A. and by this Method we could strain it through Wa∣ter
as often as we had a mind to be inform'd, what new Qualities it acquir'd in reference to the Bodies about it.
See Fig. 1.
See Fig. 2.