948 



Voltaic Electricity. Section 5: Electrochemistry. 



62 258. 1 : 6. 



62 259. 1 : 6. 



62.251. Electro-plating Apparatus, simple, Figure, consisting of glass vessel with lid, 

 porous pot, zinc croSvS and copper plate; working without special current supply ((Iriin- 

 sehl, Fig. 870) 



The matrices, preferably of gutta-percha, are laid on the copper plate. 



62.252. Copper-plating Apparatus, Figure 



The apparatus requires a special source of current. Tin- rod-shaped cathode enclosed in a glass 

 tulie. is placed on the edge of the matrix. 



62.253. Matrices (Reprints of Coins, Medals), for obtaining galvanic deposits, of paraffin Kadi 



62.254. -- idem, of gutta-percha Kadi 



62.256. Electro-plating Apparatus for Copper Deposits, Figure, comprising: 1 Kunsen 

 cell. 1 glass trough 10 -'10x12 cm, 1 anode rod with connecting screws, 2 earthenware 

 rods with connecting screws, leads, copper-sulphate, copper anode, galvano-graphite, 

 black lead brush, and directions, in lacquered box 



62.257. -- idem, larger, with earllienwarc trough 20x20x20 cm 



j s. d. 

 0. 7.0 



0. 14. ( 



(I. 0. 7 

 0. 1.0 



Cl. .'ii'711. -'.M 



_'.".<;."> -ii 



1. 0.0 

 1. 10. d 



$984, 



