GALVANIC SOLDERING. 



87 



which originally existed between the faces will have disappeared, 

 and become filled up with copper. 



" With respect to the solidity (the degree of cohesion) of the gal- 

 vanic soldering, it is the same as that of copper or other metal pre- 

 cipitated by galvanic agency. It will, moreover, be well understood, 

 that too energetic galvanic excitation must have an injurious influ- 

 ence upon the cohesion of the metal precipitated ; and in this case 

 precisely the same phenomena will be observed as those which have 

 long manifested themselves in ordinary galvano-plastic operations." 

 L. ELSNER: Technologist. 



