Electrotypes from daguerreotypes. 550 | Coating of iron with zinc.

583

Coloring of gilding...

614 Iron....

619

619

615 Aluminium and silicium.

619

622

622

622

To dissolve gold from gilt articles 614 Lead...

To recover the gold.......

Objections to electro-gilding..... 615 Tin....................
Effects of cyanogen on health.... 615 Antimony..

Practical suggestions in gilding.. 617 Deposition of alloys....
Deposition of bronze...........

CHAPTER XXXII.

617

CHAPTER XXXIII.

THEORETICAL OBSERVATIONS.