A small hammer and anvil.
Two three-cornered files.
Small piece of cobalt glass, about 5 × 10 cm.
Pocket magnifying lens.
Several small watch glasses—for metallic beads, etc.
Chemicals.—A list of the principal chemicals is here given:—
Sodium carbonate, Na2CO3.
Borax, Na2B4O7 + 10 H2O.
Microcosmic salt, (HNaNH4), PO4 + 8 H2O.
Cobalt nitrate, Co(NO3)2 + 5 H2O.