Copper, ammonio-acetate of: Used in a depositing solution; Spencer, 39.

Copper, ammonio-sulphate of: Used in a depositing solution; Fontainemoreau, 62.

Copper and potash, tartrate of: Used in a depositing solution; Newton, W. E., 81.

Copper and potassium, cyanide of:

Used in a depositing solution;
Newton, W. E., 81.

Copper, carbonate of:

Used in a depositing solution;
Fontainemoreau, 62.
Newton, W., 81.
Poole, 48.

Walenn, 129, 130.

Woolrich, 45.

Copper, chloride of:

The vapour used to deposit ;

Grissell, 69,

Redwood, 69.

Used in a depositing solution;

Burrow, 127, 128.

Chenevix, xvi.

De la Salzede, 58.
Fontainemoreau, 62.
Kirwan, xv.

Copper, citrate of:

Used in a depositing solution;
Newton, W. E. 80.

Copper, coating or covering :

With alloys;

Copper, coating, &c.—cont.

With zinc-cont.
Fontainemoreau, 96.

Morewood, 116.

Parkes, 53.

Person, 89.
Rogers, 116.
Wyatt, 13.

Copper, cyanate of:

Used in a depositing solution;
Bocquet, 91.
Johnson, 91.

Copper, cyanide of :

Used in a depositing solution;

Barratt, 41.

Caussinus, 122.
Cornforth, 110.

Cowper, 122.

De Ruolz, xx,

Fontainemoreau, 62.
Johnson, J. H., 98.
Walenn, 129, 130.

Copper, double salts of:

Used in a depositing solution;
Newton, W. E., 80, 81.

Copper mines. See Copper precipitated from the waters of copper mines.

Copper, nitrate of:

Used in a depositing solution;
Spencer, 39.

Copper, oxide of:

Used in a depositing solution;

Corduan, 155.

Fontainemoreau, 62.

Hughes, 155.

Southby, 117.

Johnson, J. H., 91, 97.

Leeson, 43.

Liébaut, 138.
Lockett, 36.
Lowe, 115.
Lyons, 57.
Mailly, 108.
Millward, 57.

Newton, W., 81.

Newton, W. E., 80.

Norris, 47.

Oudry, A., 104.
Oudry, L., 104.
Parkes, 39, 63, 64.
Petitjean, 103.
Pêtre, 103.
Poole, 48.
Potts, 150.
Power, 77.
Russell, 63.
Shepard, 136.
Shore, 33.

Smee, xx.
Southby, 117.
Spencer, xix., 39.
Thomas, 98, 114.
Tilley, 98, 114.
Walenn, 129, 130.
Walker, xx.
Wollaston, xvi.
Woolrich, 45, 63.

By exposure to vapour;

Grissell, 69.
Redwood, 69.

By friction and heat;

Barron, 119.

By fusing a sheet of copper on to the underneath metal;

Poole, 15.

By immersion in the melted metal;

Atkinson, 120. Bowser, 22. Burgess, 78, 79. Gordon, 22. Hinde, G. J., 141,

Hinde, T. C., 141.

Morewood, 52.

Copperas. See Iron, sulphate
of.

Corrosive sublimate. See Mer-
cury, bichloride of.

Cream of tartar. See Potash,
bitartrate of (cream of tar-
tar).

Cyanate of copper. See Copper,
cyanate of.

Cyanate of potash. See Potash,
cyanate of.

Cyanide of copper. See Copper,
cyanide of.

Cyanide of copper and potas-

sium. See Copper and potas-
sium, cyanide of.

Cyanide of gold. See Gold,
cyanide of.

Cyanide of potassium. See Po-

tassium, cyanide of.