145.

146.

Boracic, uses of, 95, 135.
Hydrochloric, uses of, 126.

Molybdic action of blow-pipe on,

Nitric, uses of, 126.

Phosphoric, detection of, 138.
Sulphuric, uses of, 126.

Tungstic, action of blow-pipe on,

AGENTS, Sulphurating, 91.

AIKENITE, action of blow-pipe on, 171.
ALCOHOL, uses of, 127.

ALKALIES, the caustic uses of, 79.

Carbonated, use of, 80, 96.

ALUMINA, action of blow-pipe on, 144.
uses of, 95.

AMALGAM, action of blow-pipe on, 180.

detection of, 197.

AMMONIA, uses of, 146.

132.

Carbonate, uses of, 126.
Oxalate, uses of, 68, 126.
Phosphate of, and Soda, uses of,

Hydrosulphuret, uses of, 126.

AMMONIUM, Sulphide, uses of, 126.

ANALYSIS, Calamine, of, 223.
Copper, Antimonial, of, 220.
Carbonate of, 219.

Grey, of, 218.

Plumbiferous, of, 221.

Pyrites of, 219.

Sulphuret of, 217.

Galena, of, 217.
Hæmatite, of, 212.

Humid, Minerals of, 210-223.
Iron Clay-stone, of, 214.
Pyrites of, 210.
Arsenical, of, 211.
Specular, of, 211.
Spathose, of, 213.
Lead, Carbonate of, 214.
Chloride of, 215.
Sulphate of, 216.
Sulphuret of, 216.

Platinum Ores, of, 315-329.
Reagents for, 124.

ANALYSIS, Zinc Blende, of, 222.
Carbonate, 223.

ANHYDRITE, detection of, 206.
ANTIMONIC Acid, action of blow-pipe
on, 147.

ANTIMONIOUS Acid, action of blow-
pipe on, 147.

ANTIMONIAL Grey Copper, detection
of, 194.

Nickel, detection of, 194.
Ores, assay of, 287-294.
Silver, detection of, 194.

ANTIMONY, Grey, detection of, 194.

177.

Red, detection of, 201.
Native, detection of, 193.
Oxide of, detection of, 201.

action of blow-pipe on, 147.
Sulphuret, action of blow-pipe on,

uses of, 92.

ANVIL, uses of, 2, 122.

APPARATUS, auxiliary, to furnaces,
28-31.

for blow-pipe, 113-123.

ARGOL, uses of, 100.

ARSENIATE Copper, action of blow-pipe
ou, 172.

ARSENIC, Native, detection of, 191.
Ores, assay of, 299.

Sulphuret, Red, detection of, 200.
Yellow, detection of, 200.

ARSENICAL Copper, detection of, 192.
Iron, detection of, 193.

ARSENIOUS Acid, detection of, 200.

ASSAY, Antimony, of, 287-294.

Arsenic, of, 299.
Bismuth, of, 314.

Blow-pipe, size of, 139.
Chromium, of, 295.

Coal, heating power of, 395-403.
Cobalt, of, 301.

Copper, of, 240-259.

Fuel, heating power of, 395-403.
Gas for, in coal, 295.
Gold, of, 365-394.
Iron, of, 224-239.
Lead, of, 260-280.
Manganese, of, 295-299.
Mercury, of, 311-314.
Nickel, of, 301.

Platinum, of, 315-329.

Quicksilver, of, 311-314.

CERUM, use of, 71.

CHARCOAL, uses of, 32, 61, 81.

Supports for blow-pipe, 113.
CHEMICAL Operations, 9-19.
CHLORIDES, action of blow pipe on,
144.

CHLORIDE Sodium, Uses of, 98.

CHROME Iron Ore, detection of, 199.
Ochre, action of blow pipe on, 177.
CHROMATE of Iron, action of blow-pipe
on, 174.

CHROMIUM, Assay of, 295.

Oxide, action of blow-pipe on, 146.

CINNABAR, detection of, 201.

on, 176.

Assay, size of, 139.

Black's, 106.

Bergman's, 106.

Glance, action of blow-pipe on, 176.
Nitrate, uses of, 125.

Oxide, action of blow-pipe on, 154.
Ores, assay of, 301.

Sulphuret, action of blow-pipe on

Tin-white, detection of, 192.

COLOURED Flames, 166-170.
COKE, 33.

COMMON Salt, uses of, 98.

COPPER, Argentiferous Sulphuret, action
of blow-pipe on, 170.

171.

Antimonial, analysis of, 220.
Arseniate, detection of, 204.

action of blow-pipe on, 172.
Arsenical, Grey, detection of, 192.
Black Oxide, detection of, 205.
Blue Carbonate, detection of, 204.
Carbonate, analysis of, 219.

action of blow-pipe on, 172.
Chloride, detection of, 204.
Deutoxide, uses of, 79, 103, 137.
Green Carbonate, detection of, 204.
Grey, analysis of, 218.

Native, detection of, 190.
Plumbiferous, analysis of, 221.
Ores, assay of, 240-259.

Oxide, action of blow-pipe on, 158.
Pyrites, action of blow-pipe on,

analysis of, 219.

Purple, detection of, 196.

Red Oxide, detection of, 205.
Ruby, detection of, 205.

Sulphate, uses of, 80.

Sulphuret, analyses of, 217.

LAMP, Blow-pipe, 107.

LEAD, assay of, 260-281.

Arseniate, detection of, 202.
Carbonate, detection of, 203.
analysis of, 214.

Chloride, analysis of, 215.

detection of, 203.

Chromate, detection of, 203.
metallic, uses of, 69, 135.
Native, detection of, 191.
Nitrate, uses of, 79, 90.
Ores, assay of, 260-280.

Oxide, action of blow-pipe on, 158.
Phosphate, action of blow-pipe on,

Silicates and Borates of, uses of,

173.
79, 102.

173.

172.

Sulphate, uses of, 80, 90, 103.

action of blow-pipe on,

detection of, 203.
analysis of,

Sulphuret, action of blow-pipe on,

163.

Oxide of, action of blow-pipe on,

Ochre, detection of, 205.

Ores, assay of, 301.

Sulphuret, detection of, 196.

action of blow-pipe on, 181.

NICKELINE, detection of, 192.

NITRATES, Baryta, uses of, 125.

Cobalt, uses of, 125.

Silver, uses of, 125.

Potash and Soda, uses of, 79, 90,