CONTENTS. 



HISTORY OF THE ART OF ELECTRO-METALLURGY. 



Volta's Discovery of the Pile ...... 



Chemical Decomposition by the Pile ..... 



First Voltaic Battery (Cruickshank's) .... 



Decomposition by the Battery, and its Application 



Deposition of Metals upon others ..... 



Electro-Gilding in 1805 . . . 



Early Opinions respecting Electro-Decomposition 



How these Results affect the Discovery 



Use of Observed Facts ...... 



Spencer's First Experiments . 



Jacobi's Experiments . . . . N . ^\ 



Jordan's Experiments . . \. . 



Spencer's First Printed Paper upon Electrotype . . . ^ 



Historical Anomaly ....... 



Plumbago as a Coating introduced by Murray 



Use of Separate Battery recommended by Mason 



Laws of Deposition, priority claimed by Smee, but assigned to Spencer 



Works published on Electro- Metallurgy .... 



Patents taken out for Electro-Metallurgy .... 



DESCRIPTION OF GALVANIC BATTERIES, AND THEIR 



RESPECTIVE PECULIARITIES. 

 Nomenclature ...... 



Proposed Terms 



Single Pair of Plates 



Best kind of Zincs for Batteries 



Amalgamation of the Zinc Plates 



Economy in Amalgamation 



Distance between the Battery Plates 



Different Elements of Batteries 



Properties of Metals fit for Batteries 



Babington's Battery 



"Wollaston's Battery 



Modification of Wollaston's Battery now in use 



Defects of Common Acid Batteries 



Impurities of Sheet Copper 



Daniell's Battery 



Grove's Battery 



Smee's Battery " . 



Earth Battery . 



Magneto-Electric Machine 



Binding-Screws . , . 



Galvanometers 



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