The best method of illuminating: J his phosphorus, and which Mr W.Canton generally used, is to discharge a small electric jar near it. ... and the other has a knob! ed wire G, from which a strong spark may bi- drawn; and from each of the pieces F D, B E, ... Ow coming from r! and going to IV If the a#39;wires within the tube E F, instead of being funiisaed with knobs, be pointed, ... long; fix to one of its ends a brass cap, and to the other a stop-cock or valve ; \hen exhaust it of air by an air-pump.
|Title||:||Encyclopaedia perthensis, or, Universal dictionary of the arts, sciences, literature, etc. : intended to supersede the use of other books of reference|