INDEX. 



149 



Laws to be observed in coating one 

 metal with another, 91. 



Large Objects, deposition on, 62. 



Lead Moulds, how prepared, 1 5. 



from wood engraving, 16. 



Gilding upon, 129. 



Coating with, 136. 



Leather, depositing upon, for print- 

 ing, 80. 



Lines upon Surface of deposited Me- 

 tal, cause of, 76, 114. 



Light, effects of, upon Silver Solu- 

 tions, 107. 



Loss of Weight by Dipping, 114. 



Machine for moving goods while being 

 plated, 115, 116. 



Magneto-electric Machine, 43. 



improved, 43. 



Maintaining Gold Solution of proper 

 strength, 130. 



Mason's Application of Separate Bat- 

 tery, 18. 



Metallic Veins, on the production 

 of, 14. 



Metals, properties of, fit for Batte- 

 ries, 29. 



Medal, preparation of, for depositing 

 upon, 47. 



Metal Moulds, 61. 



Mercury, recovery from waste zincs, 70. 



. dissolved in Nitric Acid, 110. 



Gilding by means of, 132. 



Metals, their Conducting Powers as 

 affecting Deposit, 96. 



Medals, Dead Silvering of, 125. 



Method of Working Cyanide of Cop- 

 per Solution, 95. 



Millward's Magneto Machine, 43. 



Mixture for Colouring Gold, 131. 



Moulds in Lead, how prepared, 15. 



from Wood Engrav- 

 ings, 16. 



Directions for Making, 52. 



. Preparation of Wax for, 53. 



to take, in Wax, 53. 



Moulds, to take, in Plaster of Paris, 54. 



in Fusible Metal, 55. 



in Gutta iPercha, 55. 



of Wax, taken from plaster,'57 



of Fusible Alloy from Plas- 

 ter, 58. 



Non -metallic, prepared to re- 

 ceive deposits, 60. 



Moulds, precautions necessary in put- 

 ting them into solutions, 61. 

 of Copper from Plaster, 58. 



Moulding, elastic, how made, 58. 

 of Figures, 58. 



Motion, machine for producing, 115. 

 Mode of Suspending Electrotypes, 75. 

 Mounts, Silver, how made, 121. 

 Murray's, Eobert, Discovery of the 

 Use of Plumbago, 17. 



Nicholson's Experiments, 1. 

 Nickel, coating Metals with, 136. 



coating, use of, for gas pipes, 



&c., 136. 

 Nitric Acid for dripping, (dipper's 



aquafortis) 109. 

 Nomenclature, 23. 



Faraday's, 23. 



Daniell's, 23. 

 Graham's, 24. 



Non-adherence of Deposit, 98. 



Non-metallic Moulds, preparation of, 

 for Deposits, 58. 



Non-transfer of Elements in Electro- 

 lysis, 75. 



Observed Facts, use of, 4. 

 Objections to Electro-plating, 122. 



Silver Articles made by 



battery, 123. 

 Electro-gilding, 131. 



Odds-and-Ends Battery, cost of, 69. 

 Old Method of Plating, 120. 

 Gilding, 131. 



Opposite Currents of Electricity from 



Vats, 117. 

 Ornaments, how made and applied to 



old plate, 121. 



Overcoming resistance in solution, 73. 

 Oxide of Silver, 104. 

 Oxidised Silver, 125. 



Palladium, coating with, 135. 



Palmer's Glyphography, 80. 



Paterson, Dr. Thomas, 65. 



Patents for Electro-metallurgy, 21. 



Peculiarity in Depositing Copper from 

 Cyanide Solution, 95. 



Pencil Case, gold required to gild, 

 134. 



Pile, Chemical Decomposition by, 1. 



Pitch Preparation for Protecting Cop- 

 per from Deposit, 124. 



