244 Mr. G. A. Hemsalech on the Production of 



electrodes o£ all the sprayers are permanently joined to one 

 of the coatings of a pint-size leyden-jar. The negative 

 electrodes can be alternately connected to the other coating 



Burner 



M/xfng Chamber 



of the jar. An induction-coil giving a 6-inch spark is 

 sufficient for working these sprayers. 



The apparatus is worked as follows : — All the sprayers, 



