process of, 180

Lavoisier, first to suggest the
existence of aluminium, 25
Lazulite, formula of, 44
Lead, action on an aluminium-
tin alloy, 196

alloys of aluminium with,
291

deposition of, by aluminium,
82

freeing of aluminium from,
241

oxide, action on aluminium,
86

reduction of aluminium by,
221

sulphide by, 322

Leaf aluminium, 245

beating of, 57
combustion of, 71
decomposition of water
by, 73

Lechatelier, M., on the tensile
strength of aluminium bronze,
266

Lecoq de Boisbaudran, on alu-
minium-gallium alloys, 300
"Lessiveur méthodique," 149
Liebig, experiments to reduce
aluminium, 93

Lime, action of, on aluminium,

77

crucibles for melting alu-
minium, 36

kiln, use of, to furnish car-
bonic acid gas, 150
phosphate of, action on alu-
minium, 85
Lining for crucibles, 123
Liquation of aluminium, 238-240

fork made by, 63

Litharge, action on aluminium,
86

Lithia mica, formula of, 43 -
Lockport, N. Y., Cowles Bros.,
plant at, 193-196

Löwig, experiments of, in pre-
cipitating alumina, 151
Lustre of aluminium, 55

Mabery, Prof. Chas. F., official

announcement of Cowles
Bros.' process, 191-194
on a new process for pro-
ducing aluminium chlo-
ride, 326

views on the aluminium
industry, 41

Magnesia mica, formula of, 43
Magnesium sulphide, production
and reduction of, 312-317
Magnetism of aluminium, 69
Malétra, aluminium plant at
Rouen, 29

Malleability of aluminium, 57
bronze, 267

Mallet, directions for making
chemically pure alumin-
ium, 243

on the resistance of pure alu-
minium to alkalies, 77

on the specific heat of pure
aluminium, 68
gravity of aluminium,
65

Manganese, alloys of, with alu-
minium, 302

oxide, action on aluminium,
86
reduction of aluminium by,

222

Manufacture of aluminium
bronze, 267

Martin, Wm., aluminium plant
at Rouen, 29

Mat, production of, on alumin-
ium, 54

Mayer, L., analysis of beauxite
by, 47

Melting of aluminium scraps, 235
point of aluminium, 65

Mercury, action on aluminium,
25

alloys of aluminium with,
261

deposition of, by aluminium,
81
Merle & Co., aluminium works
at Salindres, 28, 35
Metallic aluminium not found
native, 43

chlorides, action on alumin-
ium, 85

oxides, action on aluminium,
86
Metallurgy of aluminium, 90, 257
general remarks on the,
128

of sodium, 130-143
Metals, coating of, with alumin-
ium, 231

comparative density of, 64
electric conductivity of,
67

thermal conductivity of,
67
plating on, with aluminium,
255

precipitation of, from solu-
tion by aluminium, 79
relative affinity of sulphur
for, 318

Michel, experiment on alumin-
ium and molybdenum, 302
making of iron-aluminium
alloys by, 282
Mierzinski, formulæ of some alu-
minium minerals as given
by, 43

general remarks on alloys
of aluminium, 258
on making aluminium
bronze, 267

on the manufacture of alu-
minium-sodium chloride,

154

on the melting of alumin-
ium, 237

on the reduction of alumin-

ium by electricity, 226
remark on the electrolysis of
aqueous solutions of alu-
minium salts, 234

Mierzinski, report on the present
state of the alumina industry,
144

Minargent, composition of, and
method of making, 278
Mineral soda, 105
Mitis castings, 283

ores suitable for, 205
W. H. Wahl's remarks
on,
326

process, iron-aluminium al-
loy used in the, 212
Molten aluminium, viscidity of,
237
Molybdenum, alloys of, with alu-
minium, 302

Monnier, Alfred, maker of
aluminium at Camden, N. J.,

31
Morin and Deville, experiments
in gilding and silvering alu-
minium, 80

Morin, P., aluminium plant at
Glacière, 28

experiments on gilding and
silvering aluminium, 256
improvements by, at Nan-
terre, 28

on the action of wine on alu-
minium, 78

on the specific heat of alu-
minium, 68

Morris, J., carbon and carbon
dioxide, method of, 187
Mourey, method of soldering alu-
minium, 248

receipt for removing tarnish
from aluminium, 51
success in gilding and silver-
ing aluminium, 80, 256
Muriatic acid, action of, on alu-
minium, 75

Nanterre, aluminium works at,
28, 35

production of aluminium at,
1859, 33

reduction of cryolite at, 126
Napoleon III., liberality of, 28
Native aluminium,
43

sulphate of alumina, 305
Neogen, composition of, 277

Newcastle-on-Tyne, Bell Bros.,
aluminium works at, 33
New York City, manufacture of
sodium in, 139–141
Nickel, alloys of aluminium with,
293

aluminium plating by Frish-
muth, 234

experiment on aluminium
and tungsten, 302

Niewerth, double reaction,
method of, 185

iron reduction, process of,
206

Niewerth's nascent sodium pro-
cess, 179

process, remark on, 318
Nitre, action of, on aluminium,

83

4

purification of aluminium
by, 241
Nitric acid, action of, on alu-
minium, 75
Nitrogen, action on aluminium,
88

alloys of, with aluminium,
303

Normal School, Paris, experi-
ments at the, 28

Occurrence of aluminium in
nature, 43-50

Odor of aluminium, 56
Oerstedt, first published paper
on aluminium, 90

isolation of aluminium by, 25
Oerstedt's paper reviewed by
Wöhler, 91

Ores of aluminium used by
Cowles Bros., 205
Organic acids, action of, on alu-
minium, 78

Orlowsky, A., on the relative
affinity of sulphur for the
metal, 318

Orthoclase, formula of, 43
Ostberg, Peter, inventor of mitis
castings, 283

remark on the reduction of
aluminium by iron, 212
Oxidation of aluminium, 71
Oxide of barium, action on alu-
minium, 87

Oxide of copper, action on alu-
minium, 87

of iron, action on alumin-
ium, 86

of lead, action on alumin-
ium, 86

of manganese, action on alu-
minium, 86

of zinc, action on alumin-
ium, 86

sub, of aluminium, 26
Oxides, metallic, action on alu-
minium, 86

Palais de l'Industrie, Paris, 1855,
aluminium bar exhibited at,

34

Paraffin, Wagner's use of, to pre-
serve sodium, 138

Paris Exhibition of 1855, alumin-
ium objects presented at, 28
Passementere, aluminium, 60
Peligot, on cupelling alumin-
ium, 71

Pennsylvania Salt Co., importers
of cryolite, 48

Pens, suitability of aluminium
bronze for, 272

Percy, Dr., experiments in mak-
ing aluminium bronze, 264
reduction of cryolite prior to
Rose, 115

Petitjean, carburetted hydrogen,
process of, 183
Petitjean's process tested by Rei-
chel, 315
Philadelphia, Col. Wm. Frish-
muth's aluminium works in,

37

Phosphate of lime, action on
aluminium, 85

Phosphorized aluminium bronze,
279

Phosphorus in aluminium, 126
Photo-salts of aluminium, efforts
to produce, 27

Physical properties of alumin-
ium, 51-70

Plants, alumina never found in,
44

Plating, aluminium, 231
aluminium-nickel, 234
with aluminium, 246

Platinum, alloys of aluminium
with, 299
Poggendorff and Reiss on the
magnetism of aluminium, 69
Polish of aluminium, 55
Porcelain crucibles, use of, for
obtaining aluminium, 228
imitation of, made with cryo-
lite, 48

Potash, action of, on aluminium,
77

mica, formula of, 43
Potassium. aluminium first iso-
lated by the use of, 26
amalgam, experiment with,
by Gmelin, 263

used in isolating alu-
minium, 25

and sodium, reduction to-
gether of, 138
carbonates, action on alu-
minium, 88
chloride, action on alumin-
ium, 85

decomposition of, by
electricity, 142
cyanide as a reducing agent,
180

reduction in the Bessemer

Rammelsberg, on silicon in com-
mericial aluminium, 52
Rammelsberg, Prof., experi-

ments in reducing cryolite, 103
Rattle, baby, first article made
of aluminium, 244
Reduction furnace, Deville's, for
sodium, 134

for reducing aluminium
by sodium, 169
Gerhard's, 127

of alumina by carbon in
presence of copper, 309

of aluminium at Salindres,
168

by carbon, 188

and carbon dioxide,
187

by carburetted hydro-
gen, 182
by copper, 212
by cyanogen, 180

by double reaction, 181
by electricity, 222
by ferro-silicum, 206

by hydrogen, 181
by iron, 206

by lead, 221

by manganese, 222
by other agents than so-
dium, 180

con, 207

by zinc, 214

sulphide, 315, 322

of sodium by Castner, 324
under pressure, 179
Reflectors, advantages of alu-
minium for, 245

Regnault, M., on the specific heat
of aluminium, 68
Reichel, paper on sulphides of
aluminium and magnesium,
312-317

Reinar, G. W., on the reduction

of aluminium by carbon, 189
Reiss and Poggendorff, on the
magnetism of aluminium, 69
Retorts for reducing sodium,
134

Retzlaff, analysis of beauxite by,

47

Ricarde-Seaver, Major, views on
aluminium, 37

Rolling of aluminium, 57
Rose, H., paper on reduction of
cryolite, 103-115

Rouen, aluminium works near,
29, 33

process used at, 124

Rousseau Bros., aluminium
works at Glacière, 28

Ruby, formula of, 44

149

Schnitzer, analysis of beauxite
by, 47

Schwarz, improvenent on Mou-
rey's solders by, 249
Scraps, aluminium, melting of,
235

melting of, by Col.
Frishmuth, 39
Sellers, Mr., of Philadelphia, on
the use of aluminium in cast-
ing iron, 284

Senet, M. L., on depositing alu-
minium by electricity, 233
Sevrard, M., success of, in ve
neering aluminium, 253
Seymour, Fred. J., patent for the
reduction of aluminium
by zine, 218

second patent of, 220
Shaw, T., patented phosphor
aluminium bronze, 279

Siemens's furnace, used in reduc-
ing sodium, 135

Siemens, Sir Wm., melting of
steel with electricity, 194
Silicates, action of, on alumin-
ium, 84

of aluminium, formulæ of, 43
Siliceous aluminium, 238

on the gases evolved
during solution of, 260
alloys of aluminium
with, 259

St. Austel, supposed discovery of

Silicon,

aluminium bronze, 205
extraordinary strength
of, 280

bronze manufactured by M.
Evrard, 211
crystallized, 260

disengagement of, as silicu-

retted hydrogen in dissolv-
ing aluminium, 76

facilitates the oxidation of
aluminium, 71

freeing of aluminium from,
243

its state of combination in
aluminium, 52

use of, to reduce aluminium,
207