None
^ 0 32- 21 69-8 41 105-8 61 141-8 8i 177-8 1 33-8 22 71-6 42 107-6 62 143-6 82 179-6 2 35-6 23 73-4 43 109-4 63 145-4 83 181-4 3 37-4 24 75-2 44 111-2 64 147-2 84 183-2 4 39-2 25 77- 45 113- 65 149- 85 185- 5 41- 26 78-8 40 114-8 66 1508 86 186-8 6 42-8 27 80-6 47 116-6 r,7 152-6 87 188-6 7 446 28 82-4 48 118-4 08 154-4 88 190-4 8 46-4 29 84-2 49 1202 69 156-2 89 192-2 9 48-2 30 86- 50 122- 70 153- 90 194- 10 50- 31 87-8 51 123-8 71 159-8 91 395-8 11 51-8 32 89-6 52 125-6 72 161-6 92 197-6 12 53-6 33 91-4 53 127-4 73 163-4 93 199-4 13 55-4 34 93-2 54 129-2 74 165-2 94 201-2 14 57-2 35 95- 55 131- 75 167- 95 203- 15 59- 36 96-8 56 132-8 76 j 108-8 96 204-8 16 60-8 37 98-6 57 134-6 77 170-6 97 206-6 17 62-6 38 100-4 58 136-4 78 172-4 98 208-4 18 04-4 39 102-2 59 138-2 79 174-2 99 210-2 19 66-2 40 104- 60 140. 80 176- 100 212- 20 68- Units Of time „ space ,, force „ work ,, rate of work French unit of work USEFUL DATA. Mechanical Units. = 1 minute. ... = 1 foot. ... = The force which will support 1 pound weight. = 1 foot-pound, or the quantity of energy which will raise 1 pound through a space of 1 foot. ... =1 horse-power, or 550 pounds per second, = 33,000 per minute. ... = 1 kilogrammetre, 1 kilogramme raised through 1 metre, = 7 '233 foot- pounds, = 9-807 joules (p. 37). u2 292 APPENDIX. Electrical Units. Units Of quantity of electric current „ rate of flow of elec- tric current ,, conduction-resistance 1 coulomb (p. 12). 1 coulomb per seconct 1 ampere, (p. 18). 1 ohm, or that of a column of mer- cury 1*0 square m.m. section and 1,060 m.m. long at 0°C. (p. 24). electromotive force = 1 volt, or that which will urge 1 cou- lomb through a resistance of 1 ohm in 1 second, = '9268 that of a Daniell's cell, = 22,900 calories, (pp. 14-49). 1 watt or volt-ampere, = 7J^ horse- power (p. 23),= 7£B : French horse- power. 1 joule or volt-coulomb =7375 foot- pounds (see Notes, p. 37). The quantity of water, viz., '000093 gramme, decomposed by one cou- lomb of current (p. 128). „ electric energy ,, electric work ,, electrolytic work Units Of quantity of heat heat of electric con- duction resistance Thermal Units. , » 1 calorie, =1 gramme of water raised 1°C. = 423-55 grammes raised 1 metre high, =3 '0636 foot-pounds. English unit, 1 pound of water raised 1° Fahr., = 772 foot-pounds "the mechanical equivalent of heat" (p. 37), = 252 '0 C. G. calories. = 1 joule, or the heat produced by 1 coulomb passing through a resist- ance of 1 ohm, = 1 watt exerted during 1 second, = *24 of a centi- grade-gramme calorie (p. 37). Unit Of chemical energy Chemical Unit. = The energy exerted in the formation of -000093 gramme of water (p. 38). APPENDIX. 293 MISCELLANEOUS DATA. 1 foot-pound =1-356 Joules. 1 watt =44*236 foot-pounds per minute, or 7373 per second. 1 horse-power = 746 watts =76 kilogram metres per second. unit of electric output = 1,000 watts = 1 '34 horse-power. horse-power =746 amperes = 1 '93 pounds of copper deposited per hour (pp. 19-28). 1- square foot of copper I'O mm. thick, weighs 29 '25 ounces. I' „ „ .... „ ., 'Clinch „ „ 7-43 „ jl* *• " '» " *25 inch „ ,, 11 '6 pounds. 1* ,, „ ,, ,, weighing l'01b. = '0208 mm., or -0008 inch in thickness. 1* cubic inch ,, „ weighs 5-1585 avoirdupois ounces, or •3224 pound. 1*0 ampere deposits 1'174 gramme or 18*116 grains of copper per hour (pp. 19-128). 1-0 „ „ 4-0248 grammes or 62-100 grains of silver per hour (pp. 19-128). 10 -0 . ,, 9 -84 ounces of copper in 24 hours. 1127 2485 386-4 WO €61'8 f, „ 1*0 kilogramme of copper I'O pound of silver per hour. 1*0 kilogramme of silver per hour. 1*0 pound of copper ,. ,, 7 87 amperes per square foot deposit '25 inch thickness of copper per four weeks of 156 hours per week. 17-94 amperes per square foot deposit -001 inch thickness of copper per hour. 4J9 96 amperes per square foot deposit '10mm. thickness of copper per hour, or 15 '6mm. per week. 294 APPENDIX 17 9 '4 amperes per square foot deposit 'Olmra. thickness of copper per hour, fths oz. of copper deposited per square foot per hour—j3^ incb increase of thickness per hour. 1*0 Ib. of copper deposited per square foot per hour ='547 mm. increase of thickness per hour. The absolute zero of heat and of electric conduction resistance in metals is= - 273° 0., or - 459 '4 Fahr. (p. 31), INDEX TO CONTENTS. PAGE ABSOLUTE ZERO OF HEAT 294 ACID, INFLUENCE OF, UPON ELECTROLYSIS 88 AFFINITY, CHHMICAI 42 ALLOYS, CONDUCTION RESISTANCE OF 27-28 „ ELECTRO-DEPOSITION OF 106 ALTERNATE CURRENT ELECTROLYSIS 81 ALUMINIUM, PROCESSES o* OBTAINING 251 AMMETER 205 AMOUNT OF ANODE SURFACE 188 „ „ CATHODE „ igi „ „ CURRENT PRODUCED BY DIFFERENT METALS 64 AMPERE, MEANING OF THE TERM 18-292 ANALYSING COPPER-REFINING SOLUTION 216 ANALYSIS OF MUD FROM COPPER- DEPOSITLNG VATS 219 ANIONS, MEANING OF THE TERM 78 ANODE, „ „ , 7= ANODES, THE 186 ARRANGEMENT OF, IN COPPER REFINING 188 COMPOSITION „ „ „ 188 CHANGING ,, „ „ 198 IMPURITIES „ „ „ 210 EFFECT OF IMPURITIES OF, IN COPPER REFINING 210-216 INFLUENCE OF SOLUBILITY OF 95 ,, „ FRESH ONES 214 ORDER OF DISSOLVING OF 115 SIZE AND NUMBER OF, IN COPPER REFINING 188 OF MINERAL SULPHIDES ,, „ 92-234 ANOLYTE, MEANING OF THE TERM 79 ANTIMONY, ELECTROLYTIC SEPARATION OF 247 „ EVIL EFFECT OF, IN COPPER REFINING 218 „ EXPLOSIVE no APPENDIX 286 ARGENTIFEROUS EARTH, PROCESSES OF TREATING 274 AREAS OF CIRCLES 286 ARRANGEMENTS FOR PRODUCING ELECTROLYSIS. 73 „ OF ANODES IN COPPER REFINING 188 ,, ,, CATHODES ,, „ 190 ATOMIC WEIGHT 44 „ WEIGHTS OF ELEMENTARY SUBSTANCES.. 44 ATOMICITY, MEANING OF THE TERM 47 AURIFEROUS EARTH, PROCESSES OF TREATING. 273 BADIA ON MINERAL SULPHIDES AS ANODES ..92-234 BALANCE, THE VOLTAIC 53 „ OF ELECTROLYTIC AND VOLTAIC ACTION 124 BARKER'S TREATMENT OF AURIFEROUS EARTH. 274 BATTERIES, VOLTAIC 58 BAUME'S HYDROMETER SCALE 289 BECQUKREL'S METHOD OF TREATING MINERALS.. 227 ,, EXPERIMENTSON QUANTITY OF ELEC- TROLYSIS "8 „ EXPERIMENTS ON Loss OF ANODE AND GAIN OF CATHODE 122 BEKETOV'S PROCESS OF OBTAINING SODIUM 273 BERTHELOT'S EXPERIMENTS ON THE LIMITS OP ELECTROLYSIS 114 BISMUTH, EVIL EFFECT OF, IN COPPER SOLUTIONS 218 "BLACK COPPER," CHEMICAL COMPOSITION OF .. 189 "BLISTER COPPER," „ „ „ .. PAGE CONDENSER, ELECTRIC 12 CONDUCTION AND INSULATION 23 CONDUCTION IN ELECTROLYTES WITHOUT ELEC- TROLYSIS ? 81 „ RESISTANCE, CAILLETET'S EXPERI- MENTS ON 31 ~~ ., ,, ELECTRIC 24 ,, HEAT OF 36 „ „ KOHLRAUSCH'SEXPERI- MENTS ON 31 M ,, MATTHIESSEN'S EX- PERIMENTS ON 26-30 ,, ., WROBLEWSKI'S EXPERI- MENTS ON 31 M , OF LIQUIDS 25-30 ,, „ OF MINERALS 33 ,. ,, UNIT OF 292 CONDUCTING POWERS OF METALS AND ALLOYS 26-27-32 CONDUCTOR, THE MAIN 192 „ ,, ,, CHEAPEST SIZE OF 193 CONNECTION BETWEEN ELECTROLYTIC, CHEMICAL, AND VOLTAIC ACTION 71-72 CONNECTIONS OF CATHODES IN COPPER REFINING 190-191 CONSTRUCTION OF VATS FOR KEFINING COPPER.. 180 CONSUMPTION OF ELECTRIC ENERGY IN ELEC- TROLYSIS 129-134-151 CONVERSION OF ENGLISH AND FRENCH MEASURES 288-289 COPPER, COMPOSITION OF " BLACK " 189 „ „ ,, "BLISTER" 189 ,, ,, ,, "PIMPLE" 189 n CRYSTALS, ELECTRO-DHPOSITED 104 ,, FIRST ELECTROLYTIC SEPARATION OF .. i „ IN SOLUTION, FINDING AMOUNT OF 2:6 ,, Loss OF, BY CHEMICAL COKROSION 69-123-124 ,,. NODULES, ELECTROLYTIC FORMATION OF 100 „ RATE OF ELECTRO-DEPOSITION OF 207 „ REFINERIES, LIST OF ELECTROLYTIC 6 H REFINKRY, ESTABLISHING AN ,, 149-224 ,, REKINING, ADVANTAC;ES OF ELECTRO- LYTIC 149 „ ,, AMOUNT OF CATHODE SURFACE NECESSARY IN 150 „ ,, COST OF ELECTROLYTIC. 152-221 „ „ EXPENDITURE OF ELECTRIC POWER IN 198 ,, ,, EXPENDITURE OF MECHANICAL POWER IN 200 „ SOLUTION, CHEMICAL EXAMINATION OF 216 „ ., RESISTANCE OF, IN COPPER REFINING 203 „ THICKNESS OF, DEPOSITED PER HOUR. 293 ,, WEIGHT ,, ,, ,, AMPERE HOUR 293 „ „ „ SURFACES OF DIFFERENT THICKNESS 293 CORROSION, INFLUENCE OF CIRCUMSTANCES ON CHEMICAL 64-67-69-123 „ SERIES OF METALS 69 COST OF DYNAMOS AND VATS IN COPPER REFINING 223 „ ELECTROLYTIC COPPER REFINING 221 „ MOTIVE POWER AND PLANT IN DITTO.. 152 COULOMB, MEANING OF TERM 12-18-292 COUNTER ELECTROMOTIVE FORCE 86 COWLES'S PROCESS OF ELECTRIC SMELTING 281 CROMPTON-BRUSH DYNAMO 176 CRYOLITE, ENERGY CONSUMED IN DECOMPOSING.. 133 „ KLEINER'S PROCESS OF ,, .. 251 CRYSTALS OF METALS, ELECTROLYTIC FORMATION OF 104 CURRENT, ELECTRIC 18 „ ,, DENSITY OF 20 „ „ „ „ USED IN RE- FINING COPPER 208 ,, ,, DISTRIBUTION OF, IN AN ELECTROLYTE 80 it ,, EXAMINATION OF, IN COPPER REFINING 204 „ ,, INFLUENCE OF DENSITY OF 98 »> „ „ „ DISSOLVED IMPURITIES UPON 215 PAGE CURRENT, ELECTRIC, RETARDATION OF, AT ELEC- TRODES 96 ,, „ STRENGTH OF 18-292 " CUT-OUT " 23-205 DANIELL'S BATTERY 60 ,, " ELECTROLYSIS OF SECONDARY COM- POUNDS " .T. 79 DATA, MISCELLANEOUS 293 DAVY, ISOLATION OF POTASSIUM AND SODIUM BY 77 DECHARME'S EXPERIMENTS 84 DECHAUD'S PROCESS OF TREATING MINERALS .. 227 DECIMAL EQUIVALENTS OF INCHES AND FEET .. 286 DECOMPOSABILITY OF ELECTROLYTES 112-114 DECOMPOSE COMPOUNDS, ENERGY REQUIRED TO 131 ,, CRYOLITE ,, ,. ,, 133 DEFINITE ELECTRO CHEMICAL ACTION, LAW OF 117 DEI.IGNY'S METHOD OF TREATING MINERALS 228 DENSITY OF CURRENT, INFLUENCE OF, ON ELEC- TROLYSIS 98 ,, ,, ,, MEANING OF THE TERM.. 20 „ ,, ,, USED IN REFINING COPPER 208 DEPOSITS, PURITY OF ELECTRO- no ,, RATE OF INCREASE OF THICKNESS OF COPPER 209-293 DEPOSITED ANTIMONY, EXPLOSIVE no ,, COPPER, DEGREE OF PURITY OF 217 DEPOSITING COPPER, USUAL RATE OF .. 105-207-208 „ ROOM, THE 180 ,, SOLUTION, ANALYSIS OF COPPER 217 ,, „ COMPOSITION OF COPPER 194 ,, SURFACE, AMOUNT REQUIRED IN COPPER REFINING 150-191 DEPOSITION, NECESSARY RATE OF 105 ,, OFCOMPOUNDS,MlXTURESANDALLOYS IO6 DETECTION OF RESISTANCES AND LEAKAGES OF CURRENT 204 DIEHL'S PROCESS OF SEPARATING ALUMINIUM .. 260 DIFFUSION EXPERIMENTS OF M. DECHARME .... 84 „ OF LIQUIDS, ELECTROLYTIC 83 ,, ,, ,, INFLUENCE OF VOLTAIC CURRENT ON 8c DISCOVERY OF ELECTROLYTIC SEPARATION OF METALS i „ „ ELECTRO-MAGNETIC INDUCTION 140 ,, ,, MAGNETO-ELECTRIC ,, 2-5 ,, ,, VOLTAIC ELECTRICITY i DISTANCE APART OF ELECTRODES IN COPPER REFINING 185 DISTRIBUTION OF CURRENT IN AN ELECTROLYTE 80 DIVIDED CIRCUIT 21 ,, ELECTROLYSIS 116 DYAD, MEANING CF TERM 47 DYNAMO-ELECTRIC CURRENTS, PRODUCTION OF.. 141 „ ,, MACHINE, CAKE OF 179 ,, ,, ,, DEFINITION OF 138 „ ,, EFFICIENCY OF 148 ,, ,, ,, GENERATION OF CURRENTS BY .. 297 H PACE EARLIEST ELECTROLYTIC REFINING OF COPPER.. 3 ,, KNOWN FACT OF ELECTRIC SEPARATION OF METALS i ECONOMIC RATE OF REFINING COPPER, THE MOST 208 ECONOMY, LIMITS OF, IN ELECTROLYTIC REFINING OF COITKR 209 EDISON-HOJ'KINSON DYNAMO 164-165 EFFECTS OF STIKRING THE ELECTROLYTE 122 „ „ TEMPERATURE ON CORROSION OF METALS 69-123-124 „ „ VAT SEDIMENT ON THE COPPER SOLU- TION 220 EFFICIENCY OF DYNAMOS, COMMERCIAL 148-178 ELECTRIC CAPACITY 12 CONDENSER 12 CONDUCTION RESISTANCE 24 CURRENT 18 ENERGY 23 „ „ AMOUNT OF, USED IN REFINING COPPER 200 „ ,, CONSUMPTION OF, IN ELEC- TROLYSIS 129 „ „ UNIT OF 292 „ POLARITY AND INDUCTION u „ POTENTIAL 13 „ QUANTITY 12 „ SMELTING, COWLES'S PROCESS OF...... 281 ,, WORKS AT MILTON 164 ,, WORK, UNIT OF 292 ELECTRICAL THEORY OF CHEMISTRY 51 ,, UNITS 292 ELECTKO-CHEMICAL ACTION, CHIEF FACTS OF .. 71 „ „ „ QUANTITY OF 117 „ DEPOSITED ANTIMONY, EXPLOSIVE no „ „ CRYSTALS OF METAL .. 101-104 „ ,, METALS, PHYSICAL STRUC- TURE OF 99 „ „ NODULES OF COPPER :oo „ DEPOSITION, BATTERY METHOD 76 „ „ METHODS OF 74 „ „ PREPARING SOLUTIONS FOR 78 „ SERIES MR-SHOD 74 ,, „ SINGLE CELL METHOD 76 ,, „ NECESSARY RATE OF 105 ELECTRODES, MEANING OF THE  INSOLUBLE COATINGS ON 98 INSPECTION OF, IN COPPER REFINING 196 „ METALLIC SULPHIDES AS 92 „ POLARISATION OF 86-204-208 „ RETARDATION op CURRENT AT .... 96 „ SUSPENDING COPPER, MODE OF .... 185 „ UNEQUAL ACTION AT 86 ELECTRO-DYNAMOMETER, SIEMENS' 19-206 ELECTROLYSIS, ARRANGEMENTS FOR PRODUCING . . 73 ,, BY ALTERNATING CURRENT 81 „ CHIEF FACTS OF 71 „ CONDUCTION IN ELECTROLYTES WITHOUT? 81 „ DIVIDED 116 OF FUSED COMPOUNDS 91 „ INCIDENTAL PHENOMENA OF 107 „ INFLUENCE OF COMPOSITION OF THE LIQUID UPON CUR- DENSITY OF RENT UPON ...... KIND OF ELEC- TRODES UPON ____ LIQUID DIFFUSION UPON ............ SOLUBIUTYOF ANODE UPON ............ 95 TEMPERATURE UPON 89 WATER AND FREE ACID UPON ...... 88 83 PAGH ELECTROLYSIS, CONSUMPTION OF ELECTRIC ENERGY IN ••• 129-134 „ LOCALITY OF 79 „ NOMENCLATURE OF 78 „ QUANTITY OF n7 „ SECONDARY PRODUCTS OF 127 „ SECONDARY EFFECTS OF 106 THEORIES OF i34 „ IHERMAL PHENOMENA ATTENDING 89 „ TRANSPORT OF IONS IN 82 ELECTROLYTE, MEANING OF THE TERM 78 ELECTROLYTES, ORDER OF DECOMPOSABILITY OF 112-114 „ VOLTA-TENSION SERIES OF 52 ELECTROLYTIC AND VOLTAIC ACTION, DISTINCTION BETWEEN 71 „ BALANCK OF CHEMICAL CORROSION 124 „ COPPER REFINERIES, LOCALITIES OF 6 „ „ REFINERY, PLANNING AN.. 149 „ DEPOSITION OF MIXED METALS .. 106 „ „ ,, CRYSTALS 101 „ DEPOSITS, PURITY OF no „ DIFFUSION OF LIQUIDS 83 „ EQUIVALENTS OF SUBSTANCES 125-127 „ PROCESS OF TREATING MINERALS 227-237 „ REFINERY, ESTABLISHING AN.. 149-224 „ REFINING, CHIEF FACTS AND PRIN- CIPLES OF 9 „ „ OF METALS, THERMAL PHENOMENA OF 36 M „ OF COPPER, EARLIEST PROCESS OF 4 n „ CHEMICAL FACTS AND PRINCIPLES OF 43 „ „ ELECTRICAL FACTS AND PRINCIPLES OF n „ „ THERMAL FACTS AND PRINCIPLES OF 36 „ t CHOICE OF DYNAMO FOR 178 „ „ PROCESS, ADVANTAGES OF THE 149 „ ., OF COPPER, COST OF .. 221 „ .. „ GOLD 242 ,, „ „ NICKEL 280 „ „ „ SILVER 940 .» ZINC 261 „ SEPARATION OF ELEMENTARY SUB- STANCES 106 ALUMINIUM .. 251-259 ANTI MON Y 247 LEA D 244 MAGNESIUM 266 POTASSIUM 271 SODIUM 271 „ . „ TIN 248 „ ,, ,, ZINC 261 „ WORK, UNIT OF 292 ELECTRO-MAGNETIC INDUCTION 140 ELECTROMETER, QUADRANT 15 ELECTROMOTIVE FORCE 14 „ „ COUNTER 86 „ „ DEGREE NECESSARY IN REFINING COPPER .... 153 lf ,, MEASUREMENT OF 15 „ ,, RELATION OF CHEMICAL HEAT TO 52 ,, ,, STANDARD OF 17 „ „ UNIT OP 292 ELECTRO-THERMAL UNIT 37-292 ELEMENTARY SUBSTANCES 43 „ „ ATOMIC WEIGHTS OF.. 44 „ ,, ELECTROLYTIC EQUIVA- LENTS OF 126 „ „ ELECTROLYTIC SEPARA- TION OF 106 „ „ VOLTAIC EQUIVALENTS OF 64 „ „ VOLTA TENSION SERIES OF 50 ELKINGTON'S FIRST ELECTROLYTIC REFINING PROCESS 4 298 INDEX. PAGE ELMORE'S DYNAMO 176 ELWELL- PARKER'S DYNAMO 169 ENERGY, ELECTRIC 23 ,, ,, CONSUMED IN REFINING OF COPPER 200 ,. „ CONSUMPTION OF, IN ELEC- TROLYSIS 129-151 „ ' ,, GRAMME'S EXPERIMENTS ON 151 ,. ,, LOST IN OVERCOMING RESIST- ANCE 134. ,, MECHANICAL, CONSUMED IN REFINING OF COPPER 198 ENGLISH WEIGHTS AND MEASURES 287 EQUIPOTENTIAL LINES 80 EQUIVALENT OF HEAT, MECHANICAL 37-292 ,, WEIGHTS OF SUBSTANCES, CHEMICAL 46 EQUIVALENTS OF SUBSTANCES, ELECTROLYTIC 125 ESTABLISHMENT OF AN ELECTROLYTIC COPPER REFINERY 149-224 EXAMINATION OF THE COPPER SOLUTION, CHEMICAL 216 ,, ,, ELECTRIC CURRENT IN COPPER REFINING 200 EXPENDITURE OF ELECTRIC ENERGY IN COPPER REFINING 120 „ ,, ,, ,, GRAMME'S EXPERIMENTS 151 ,, ,, MECHANICAL ENERGY IN COPPER REFINING 198 EXPLOSIVE-DEPOSITED ANTIMONY no EXTERNAL RESISTANCE 34 EXTRACTION OF METALS FROM MINERALS BY ELECTROLYSIS 226 FARAD, MEANING OF THE TERM 12 FARADAY'S DISCOVERY OF MAGNETO-ELECTRICITY 2-5-140 ,, LAW OF DEFINITE ELECTROLYTIC ACTION 117 „ THEORY OF ELECTROLYSIS 134 FAVRE'S EXPERIMENTS ON DIVIDED ELECTROLYSIS 136 „ MEASUREMENTS OF CHEMICAL HEAT .. 42 FISCHER'S PROCESS OF TREATING AURIFEROUS EARTHS 279 FOOT-POUND, MEANING OF THE TERM 293 FORMATION OF CATHODES IN COPPER REFINING 189 FORMULA OF SUBSTANCES, CHEMICAL 45 ,, AND SYMBOLS, THERMAL 38 FREE ACID IN COPPER SOLUTION, TESTING AMOUNT OF 216 FRENCH MEASURES OF LENGTH, ETC 288 FUSED COMPOUNDS, ELECTROLYSIS OF 91 FUSIBILITY OF METALS, TABLE OF 289 GALVANOMETER 19 GLADSTONE'S EXPERIMENTS ON ELECTROLYSIS 77-91-104 GOLD, ELECTRO-DEPOSITED CRYSTALS OF 103 ,, AND SILVER BULLION, REFINING OF 240 „ SEPARATION OF, FROM AURIFEROUS EARTHS 273 GRAMME'S DYNAMO 6-147-159 ,, EXPERIMENTS ON ELECTRIC ENERGY .. 151 GRATZEL'S PROCESS OF OBTAINING MAGNESIUM.. 266 GREENWOOD'S PROCESS OF OBTAINING SODIUM, ETC. 273 GROVE'S BATTERY 61 GULCHER'S DYNAMO 171 HALL'S PROCESS OF OBTAINING ALUMINIUM 259 HAMBURG, ELECTROLYTIC REFINING OF BULLION AT 242 HAMMERL'S EXPERIMENTS ON MEASUREMENT OF CURRENT 126 HAMPE'S EXPERIMENTS ON ELECTRIC SMELTING 285 „ M ,, ELECTROLYSIS 88-91 HEAT, ABSOLUTE ZERO OF 294 HEAT OF CHEMICAL UNION 37.42 „ „ CONDUCTION-RESISTANCE 36 ,i >, „ ,, ENERGY LOST AS 134 it M » M UNIT OF ..37-292 „ „ FORMATION OF CHLORIDES 41 „ „ FORMATION OF OXIDES 42 PACK HEAT OF FORMATION AND SOLUTION OF SALTS OF COPPER 115 HEAT, MECHANICAL EQUIVALENT OF 37-292 HEAT ATTENDING ELECTROLYSIS 89 HEAT, RELATION OF, TO ELECTRO-MOTIVE FORCE 52-54 HEATING OF DYNAMOS 148 HERMITE'S PROCESS OF REFINING NICKEL 280 HERAULT'S PROCESS OF OBTAINING ALUMINIUM 255 HEXAD, MEANING OF THE TERM 47 HITTORF'S EXPERIMENTS ON TRANSPORT OF IONS 82 HOCHHAUSEN'S DYNAMO 174 HOPKINSON'S EXPERIMENTS OF ELECTROLYSING CRYOLITE 133 HOPNER'S PROCESS OF OBTAINING SODIUM AND POTASSIUM 270 HORSE-POWER, MEANING OF THE TERM 293 HYDROMETER SCALES, RELATIONS OF. 289 IMPURE ANODES IN COPPER REFINING, INFLU- ENCE OF 210-214 IMPURITIES IN COPPER ANODES 210 „ ,, ELECTRO-DEPOSITED COPPER 217 IMPURITIES, INFLUENCE OF, ON THE ELECTRIC CURRENT 213 INCIDENTAL PHENOMENA ATTENDING ELECTRO- DEPOSITION 107 INDICATORS, CURRENT 206 INDUCTION, ELECTRO-STATIC n ,, ELECTRO-MAGNETIC 140 ,, MAGNETO-ELECTRIC 140 INJECTOR, KORTING'S 197 INSOLUBLE COATINGS ON ELECTRODES 98 INSPECTION OF THE VATS, ELECTRODES, ETC. .. 196 INSULATION 23 „ OF THE VATS IN COPPER REFINING 181 INTERNAL RESISTANCE 34 IONS, MEANING OF THE TERM 78 ,, ORDER OF SEPARATION OF 113 ,, TRANSPORT OF IN ELECTROLYSIS 82 IRON PYRITES, TREATMENT OF, FOR OBTAINING COPPER 226 JABLOCHOFF'S PROCESS FOR OBTAINING SODIUM, ETC 270 JOULE, MEANING OF THE TERM 37-292 KEITH'S PROCESS OF REFINING LEAD 244 ,, ,. ,, SEPARATING COPPER 225 KLEINER'S PROCESS FOR OBTAINING ALUMINIUM 133-251 KOHI.RAUSCH'S EXPERIMENTS ON CONDUCTION- RESISTANCE 331 KOHLRAUSCH'S EXPERIMENTS ON TRANSPORT OF IONS 82 KORTING'S INJECTOR 197 LALANDE'S PROCESS FOR REFINING ZINC 264 LAMBERT'S PROCESS FOR TREATING AURIFEROUS EARTH 275 LAMBOTTE DOUCET s PROCESS FOR SEPARATING ZINC 264 LAW OF DEFINITE ELECTRO-CHEMICAL ACTION.. 117 ,, ,, MAGNETO-ELECTRIC INDUCTION .... 143 LEAD, COMPOSITION OF ELECTROLYTICALLY RE- FINED 246 LEAD CRYSTALS, ELECTRO-DEPOSITED 104 LEAD, KEITH'S PROCESS OF REFINING 244 LEAKAGES OF CURRENT IN THE REFINING OF COPPER .. 202-204 LEAKAGES OF ELECTRIC CURRENT 24 LECLANCHE'S BATTERY i. PAGE LIQUID DIFFUSION, EXPERIMENTS OF M. DB- CHARME 84 ,, „ INFLUENCE OF, UPON ELEC- TROLYSIS 83 LIQUIDS, ELECTRIC CONDUCTION RESISTANCE OF 25-30 LIQUIDS. SPECIFIC GRAVITY OF 289 LONG'S EXPERIMENTS ON RATES OF LIQUID DIF- FUSION 84 Loss OF ANODE AND GAIN OF CATHODE, DIF- FERENCE OF lai „ „ COPPER BY CHEMICAL CORROSION 69-123 ,, ,, ENERGY AS HEAT OF CONDUCTION RE- SISTANCE 134 ,, „ ENERGY IN COPPER REFINING, SOURCES OF 201 MAGNESIUM, SEPARATION OF 266 MAGNETIC CURVES 139 ,, FIELD, DEFINITION OF A 138 ,, FORCE, LINES OF 138-140 MAGNETISM., INFLUENCE OF, ON VOLTAIC ACTION 64 MAGNETO-ELECTRICITY, DISCOVERY OF 2-5-140 ,, ELECTRIC MACHINES 5-6-144-147 MAGNITUDE AND NUMBER OF VATS 152 MAIN CONDUCTORS, THE 192 MAINTENANCE OF THE COPPER SOLUTION 216 MANAGEMENT OF DYNAMOS 179 MARCHESE'S PROCESS OF TREATING MINERALS .. 239 MATHER'S DYNAMO 175 MATHIESSEN'S EXPERIMENTS ON CONDUCTION RESISTANCE 26-30 MEANING OF TERMS .. 12-14-18-20-23-34-43-47-78-292 MEASUREMENTS, ELECTRICAL, IN REFINERIES .. 206 „ OF CURRENT, HAMMERL'S EX- PERIMENTS ON 126 ,, „ ELECTROMOTIVE FORCE .... 15 ,, „ STRENGTH OF CURRENT 19 MEASURES OF CAPACITY AND WEIGHT, ENGLISH 287 „ „ ,, ., ,, FRENCH 288 MECHANICAL EQUIVALENT OF HEAT 37-292 „ POWER EXPENDED IN COPPER RE- FINING 198 „ „ MOST ECONOMICAL PROPOR- TION OF 199 ,, UNITS 291 METAL, DEFINITION OF THE TERM 47 METALLIC SULPHIDES AS ELECTRODES 92 METALLOID, DEFINITION OF THE TERM 47 METALS, ELECTRIC CONDUCTION RESISTANCE OF 26-27 CORROSION SEFIES OF 69-123 FROM MlNEKALS, SEPARATION OF.. 226-273 PHYSICAL STRUCTURE OF ELECTRO-DE- POSITED 99 SELF DEPOSITION OF 77 SPECIFIC GRAVITIES OF 290 TABLE OF FUSIBILITY OF 290 MILTON. COWLES'S ELECTRIC SMELTING PROCESS AT 164 MINERALS, PROCESSES OF TREATING 227 M >t i, M AT CASARZA 229 ,, CONDUCTION RESISTANCE OF 33 ,, SULPHIDES AS ANODES 234 MINET'S PROCESS OF SEPARATING ALUMINIUM .. 259 MINIMUM ENERGY REQUIRED TO DECOMPOSE COMPOUNDS 131 MINIMUM E. M. F. REQUIRED TO DECOMPOSE COMPOUNDS 1 13 MISCELLANEOUS DATA 293 MIXTURES AND ALLOYS, ELECTRO POSITION OF.. PIXII'S MAGNETO-ELECTRIC MACHINE .......... 5 PLANNING AN ELECTROLYTIC COPPER REFINERY 149 PLATINOID, CONDUCTION RESISTANCE OF ...... 27-31 POGGENDORFF'S BATTERY ...................... 59, POLARI rv, ELECTRIC ............................ 1 1 POLARISATION OF ELECTRODES .................. 86 „ IN COPPER DEPOSITING VATS .. 204-208 PORRETT'S EXPERIMENTS ON ELECTRIC OSMOSE.. 83. POTASSIUM, ELECTROLYTIC SEPARATION OF ...... 270- POTENTIAL, ELECTRIC .......................... 13 POTENTIALITY, CHEMICAL ...................... 48 PRACTICAL DIVISION OF THE SUBJECT .......... 149 PREPARING SOLUTIONS FOR DEPOSITING ....... 78 ,, „ ,, COPPER REFINING .. 194 PRINCIPLES OF ELECTROLYTIC REFINING ........ 8 PROCESSES, ELECTRO-DEPOSITION .............. 74 ,, FOR SEPARATING ALUMINIUM ........ 251 ,, ,. „ ANTIMONY ........ 247 ,, ., ,. COPPER ........ 225-239. ,, ,, ,, GOLD AND SILVER ,, ,, ,. LEAD .............. 244 MAGNESIUM ...... 266 ., ,, NICKEL ............ 280- ,, ,, ,, POTASSIUM AND SO- DIUM .......... 271 TIN .............. 248 „ ZINC .............. 261 PRODUCTS, SECONDARY OF ELECTROLYSIS ...... 127 PURITY OF ELECTRO DEPOSITS .................. x jo ,, „ ,, DEPOSITED COPPER .... 214, 217 PYRITES, TREATMENT OF, FOR OBTAINING COPPER 225-23$ QUANTITY, MEANING OF THE TERM ELECTRIC., i* „ OF ELECTRIC CURRENT .............. 18 UNIT OF .. 18-29* QUANTITY OF ELECTRO CHEMICAL ACTION ____ 117 „ ,, HEAT, UNIT OK .............. 37-292 QUINCKE'S EXPERIMENTS ON DENSITY OF CURRENT 98 300 INDEX. '1 PAGE RAOULT'S EXPERIMENTS ON SELF-DEPOSITIONS OF METALS 77 RATE OF DEPOSITION NECESSARY. 105 „ „ „ USUAL IN COPPER REFINING 150-207 ,, ,, ,, OF COPPER, LIMIT OF.. 126-207 „ ,, FLOW OF ELECTRIC CURRENT, UNIT OF 292 RECAPITULATION OF THE MODE OF ESTABLISH- ING A COPPER REFINERY 234 REFINERY, PLANNING AN ELECTROLYTIC COPPER 149 „ AMOUNT OF SPACE NECESSARY IN A COPPER REFINERIES, LIST OF ELECTROLYTIC REFINING OF COPPER, COST OF ELECTROLYTE .. 221 ,, „ ,, AMOUNT OF ELECTRIC ENERGY NECESSARY 153 ,, ,, NICKEI 280 „ „ ZINC AND " ZINC SCUM" 265 RELATION OF CHEMICAL HEAT TO ELECTRO- MOTIVE FORCE 52-54 ,, „ HEAT TO CHEMICAL ACTION .... 49 REMOVAL OF SEDIMENT FROM COPPER REFINING SOLUTIONS 221 RESISTANCE, ELECTRIC CONDUCTION 24 „ EXTERNAL AND INTERNAL 34 „ TRANSFER 34 „ OF MINERALS, CONDUCTION 33 „ HEAT OF CONDUCTION 36 „ INFLUENCE OF TEMPERATURE ON .. 31 „ OF COPPEK REFINING SOLUTION.... 203 „ REGULATOR OF 207 RETARDATION OF CURRENT AT ELECTRODES .. 34-96 REUSS'S DISCOVERY OF ELECTRIC OSMOSE 83 REVOLUTION OF DYNAMOS, SPEED OF 179 ROGERS'S PROCESS OF SEPARATING MAGNESIUM 268 ,, ,, ,, ,, SODIUM AND POTASSIUM 271 ROSING'S PROCESS OF REFINING "ZINC SCUM".. 265 SALT, MEANING OF THE TERM 48 SALTS OF GOITER, HEAT OF FORMATION OF.... 115 SAXTON'S MAGNETO-ELECTRIC MACHINE 5 SECONDAKY EFFECTS OF ELECTROLYSIS 106 „ PRODUCTS OF ELECTROLYSIS 127 SEDIMENT FROM VATS, COMPOSITION, VALUE, AND TREATMENT OF 219-221 SELF-DEPOSITION OF METALS 77 SEPARATE CURRENT METHOD OF DEPOSITION .. 74 SEPARATION OF METAI.S, EARLIEST KNOWN FACT OF ELECTROLYTIC i „ ,, ELEMENTARY SUBSTANCES, ELEC- TROLYTIC 106 COMPOUNDS, ELECTROLYTIC .... 106 IONS, ORDER OF 115 ALUMINIUM 251 ANTIMONY 247 COPPER 225-239 GOLD AND SILVER 2^0-273-280 LEAD 244 MAGNESIUM 266 NICKEL 280 POTASSIUM AND SODIUM 77-271 TIN 248 ZJNC 261 METALS FROM COINS, ETC 225 ,, MINERALS AND EARTHS 226-273 "SHORT CIRCUITING 22 r SHUNTS 21-205 SIEMENS'S ARMATURE AND DYNAMO.... 6-147-156-235 ,, ELECTRO- DYNAMOMETER 22 SILVER CRYSTALS, ELECTRO-DEPOSITED 101 ELECTROLYTIC REFINING OF 240 „ WEIGHT OF, DEPOSITED PER AMPERE HOUR 293 SIMPLE IMMERSION PROCESS OF DEPOSITION 74 SINGLE CELL „ „ „ .... 76 SMEE'S BATTERY 59 SMELTING, ELECTRIC 281 SODIUM AND POTASSIUM, SEPARATION OF 270 PAGB SOLUBILITY OF ANODES, INFLUENCE OF 95 SOLUTION, PREPARING THE COPPER iv4 „ CIRCULATING THE COPPER 194 ,, RESISTANCE OF THE COPPER 203 „ TEMPERATURE OF THE COPPER 194 SOLUTIONS FOR ELECTRO-DEPOSITION, PREPARING 78 SPACE, AMOUNT OF, REQUIRED FOR ELECTROLYTIC REFINING 149 SPECIFIC GRAVITIES OF LIQUIDS 289 ,, ,, „ METALS 290 SPEED OF REVOLUTION OF ELECTROLYTIC Dv- NAMOS 179 STANDARD OF ELECTRO- MOTIVE FORCE 17 ,, VOLTAIC CELL 17 STIRRING THE ELECTROLYTE, EFFECTS OF 122 STOLBERG, ELECTROLYTIC REFINERY AT 235 STRENGTH OF CURRENT 18 ,, ,, ,, MEASUREMENT OF 19-153 „ ,, LIQUID, INFLUENCE OF, ON VOL- TAIC ACTION 6a STRUCTURE, PHYSICAL, OF ELECTRO - DEPOSITED METALS 99 SUBSTANCES, CHEMICAL FORMULAE OF 45 „ ELECTROLYTIC SEPARATION OF ELE- MENTARY 106. „ CHEMICAL EQUIVALENT WEIGHTS OF 46 ,> MOLECULAR WEIGHTS OF 45 SULPHATE OF COPPER SOLUTION, RESISTANCE OF 30 SULPHIDES, METALLIC, AS ANODES 92-234 SURFACE OF CATHODES, AMOUNT REQUIRED IN REFINING COPPER 150-191 SWITCH 205 SYMBOLS AND FORMULAE, CHEMICAL 44, 45 ,, ,, ,, THERMAL 38 TABLE OF AMOUNTS OF  ,, AREAS OK CIRCLES 286 ,, ,, ATOMIC WEIGHTS , 44 ,t ,, CENTIGRADE AND FAHRENHEIT DE- GREES 291 ,, ,, CORROSION SERIES OF METALS AT 60° AND 160° FAHR 69 „ ,, DECIMAL EQUIVALENTS OF INCHES AND FEET a86 ,, ,, ELECTRO-MOTIVE FORCE OF VOLTAIC CELLS 59 „ ,, ELECTROLYTIC EQUIVALENTS OF SUB- STANCES 126-128 ,, ,, ELECTRO-MOTIVE FORCES CALCULATED FROM CHEMICAL HEAT 54 ,, ,, ENGLISH WEIGHTS AND MEASURES .. 287 ,, ,, FRENCH ,, ,, ,, .. 288 ,, „ FUNDAMENTAL UNITS OF QUANTITY.. 9 ,, ,, DEGREES OF FUSIBILITY OF METALS 289 „ ,, HEAT OF CHEMICAL UNION 39 ,, „ ,, „ FORMATION OF CHLORIDES 41 », ii ». •• >i n OXIDES .... 42 ii n n n n ji SALTS OF COPPER .. 115 ,, ,, Loss OF ANODE AND GAIN OF CATHODE 121 „ „ ,, ,, COPPER BY CHEMICAL COR- ROSION 123 „ ,, ,, ,, ENERGY AS HEAT IN COPPER CONDUCTORS 135 ,, ,, MOLECULAR WEIGHTS AND FORMULA 45 „ RESISTANCE OF ALLOYS. 301 PAGE TABLE OK VOLTAIC EQUIVALENTS OF ELEMEN- TARY SUBSTANCES 64 i. » it SERIES 50-56 TEMPERATURE, INFLUENCE OF, ON CHEMICAL CORROSION 67-69-123 „ ., „ „ ELECTROLYSIS 89 » M i. ,, RESISTANCE 31-33 6= „ VOLTAIC AC- TION FOR COPPER RE- ,. OF SOLUTION FINING 194 TKRMS, MEANINGS OF.. 12-14-18-20-23-34-43-47-48-292 TETRAD, MEANING OF THE TERM 47 THEORY OF CHEMISTRY, ELECTRICAL 51 „ ,, VOLTAIC ACTION 70 THEORIES OF ELECTROLYSIS ,, 134 THERMAL DEPOSITION OF METALS 01 „ PHENOMENA ATTENDING ELECTROLYSIS 89 „ „ „ ELECTROLYTIC REFINING 36 „ SYMBOLS AND FORMULAE 38 „ UNITS 37-292 THERMO-ELECTRIC PILE 16 THERMOMETRIC SCALES, RELATIONS OF 290 THICKNESS OF COPPER DEPOSITED PER HOUR 209-293 '1 HOMSEN'S MEASUREMENTS OF CHEMICAL HEAT 39 THOMSON'S MODE OF CALCULATING ELECTRO- MOTIVE FORCE 52 TIN CRYSTALS, ELECTRO-DEPOSITED 103 „ ELECTROLYTIC SEPARATION OF 248 TORSION GALVANOMETER 206 TOTAL CONSUMPTION OF ELECTRIC ENERGY IN ELECTROLYSIS 134 "TRANSFER- RESISTANCE" 34 TRANSPORT OF IONS IN ELECTROLYSIS 82 TREATMENT OF PYRITES FOR RECOVERY OF COPPER 226 „ ,, MUD FROM THE VATS 221 TRIAD, MEANING OF THE TERM 47 TWADDELL'S HYDROMETER SCALE 289 UNEQUAL ACTION AT ELECTRODES 86 UNITS, OF CHEMICAL ENERGY 292 ELECTRICAL 292 „ CONDUCTION-RESISTANCE 25-292 „ ENERGY 23-292 „ STRENGTH OF CURRENT. 19-292 THERMAL 37-292 OF QUANTITY, SPACE, TIME, FORCE, WORK, ETC 9-291 USEFUL DATA 291 VALENCY, MEANING OF THE TERM 47 VALUE OF THE MUD FROM COPPER REFINING .. „ POTENTIALITY, ORDER OF 51 ,, RELATIONS OF METALS IN ELECTRO- LYTES 56-63. WATER UPON ELECTROLYSIS, INFLUENCE OF .... 88- WATT, MEANING OF THE TERM 23-292 WATT'S PROCESS OF SEPARATING ZINC 264 WEIGHT OK COPPER DEPOSITED PER HOUR 19-128-293. „ „ SILVER „ „ „ 19-128-293. „ „ SQUARE FEET OF COPPER OF DIFFE- RENT THICKNESS 209-293 WERDERMANN'S METHOD OF TREATING AURI- FEROUS EARTHS 273 WHEATSTONE'S BRIDGE 29. „ AND LADD'S DYNAMO 6 WILDE'S DYNAMO 155 WOLLASTON'S BATTERY 59, WOOLRICH'S MAGNETO-ELECTRIC MACHINE 5 WORK DONE IN ELECTROLYSIS 130-134-151 WROBLEWSKI'S EXPERIMENTS ON CONDUCTION RESISTANCE 31 ZINC, ELECTROLYTIC PROCESSES OF REFINING — 364. 14 DAY USE RETURN TO DESK FROM WHICH BORROWED LOAN DEPT. This book is due on the last date stamped below, or on the date to which renewed. Renewals only: Tel. No. 642-3405 Renewals may be made 4 days prior to date due. Renewed books are subject to immediate recall. L 9 • ^ / vj Sama Cruz j,/a Iff JSPl 3 1 -73-3 LD21A-20m-3,'73 (Q8677slO)476-A-31 General Library University of California Berkeley YC 68468 91830d THE UNIVERSITY OF CALIFORNIA LIBRARY. 