Black glassy slag for crushing and washing, from t

Metallurgy

before 1889

Mill furnace slag showing iron olivine crystals, f

Metallurgy

1871

"Six-foot" coal from Pentrefelin Colliery, near Sw

Metallurgy

1843-1889

Natural graphite from Ceylon. As used by the Paten

Metallurgy

before 1889

Alloy of 90 copper and 10 tin. A bronze

Metallurgy

before 1889

Bog iron ore from old lake deposits in Holland, co

Metallurgy

before 1889

"Yard" coal, Llynvi Coal and Iron Company, Bridgen

Metallurgy

1843-1889

Blast-furnace slag from the ironworks of Seend, Wi

Metallurgy

before 1889

Iron from the furnace bottom at one of the furnace

Metallurgy

before 1889

Basic slag from a hot-blast-furnace working with c

Metallurgy

before 1889

Yttrotantalite from Ytterby, in Sweden

Metallurgy

before 1889

Alloy of lead with 7 per cent. of magnesium

Metallurgy

before 1889

Sample piece of rail iron

Metallurgy

before 1889

Slag, "Schlacke"

Metallurgy

before 1889

Crystalline blast-furnace slag

Metallurgy

before 1889

Alloy of 75 copper and 25 antimony

Metallurgy

before 1889

Grey slag, from Lead works

Metallurgy

before 1889

Spathic iron ore from the Brendon Hills, Somerset,

Metallurgy

before 1889

Coal from Hsiwang-kan village, China

Metallurgy

before 1889

Cobalt and nickel speiss

Metallurgy

before 1889

Alloy of 20 copper and 80 antimony

Metallurgy

before 1889

Silver containing gold and iridium. Messrs. Betts'

Metallurgy

before 1889

Best selected copper from Messrs. Newton and Co.,

Metallurgy

1849

Sample of copper sheeting from Cwm Avon Copper Wor

Metallurgy

before 1862

Slag or lead scum, "Frisch Abstrich"

Metallurgy

before 1889

Result of fusing two equivalents of galena with on

Metallurgy

before 1889

Coke used at the Thondu Iron Works, made from No.

Metallurgy

before 1889

Labuan coal, Labuan Coal Company, Borneo, analysed

Metallurgy

before 1872

Gold from 4,000 grains of lead obtained by precipi

Metallurgy

before 1889

Another experiment on the same subject

Metallurgy

before 1889

Mass of sulphide of iron, showing crystalline clea

Metallurgy

before 1889

Meteoric iron, rusted portion reduced by carbonic

Metallurgy

before 1889

Finery slag showing crystals of magnetite from a f

Metallurgy

before 1889

Meteoric iron, rusted portion reduced in hydrogen

Metallurgy

before 1889

Coal from the Island of Formosa, presented by the

Metallurgy

before 1872

Refinery slag from the Bromford Iron Works, near O

Metallurgy

1845

Cannel coal, Leeswood Green Colliery, Mold, Flints

Metallurgy

1843-1889

Specimen of calcined flint used in manufacture of

Ceramics

Specimen of China Clay used in manufacture of porc

Ceramics

Result of another experiment relating to blue meta

Metallurgy

before 1889

Meteoric iron, metallic portion melted under glass

Metallurgy

before 1889

Part of the breach of a cannon showing the touch-h

Metallurgy

before 1889

Lead fume as taken from the condenser

Metallurgy

before 1889

Ferro-manganase, containing about 50 per cent. of

Metallurgy

before 1889

Copper sheathing from H.M.S. "San Josef," put on D

Metallurgy

before 1889

Corrosion of lead containing copper and iron

Metallurgy

before 1889

Refinery cinder from the pudding furnaces of the E

Metallurgy

before 1889

Ore-furnace slag, Haford Copper Works, Swansea

Metallurgy

before 1889

Clay ironstone, employed at the Newland furnaces,

Metallurgy

before 1889

Crystallised slag, Muldner Hutte

Metallurgy

before 1889