Twice melted slag from melting the last in the con

Metallurgy

before 1889

Alloy of 90 copper and 10 tin. A bronze

Metallurgy

before 1889

Speigeleisen from Rudolf, Wolff and Co.

Metallurgy

before 1889

Ereiniog prepared peat, from Portmadoc, and specimen of charcoal

Metallurgy

before 1875

Black glassy slag for crushing and washing, from t

Metallurgy

before 1889

Red lead formed in a smelting furnace, from the Al

Metallurgy

before 1889

Natural graphite from Ceylon. As used by the Paten

Metallurgy

before 1889

Cobalt and nickel speiss

Metallurgy

before 1889

Electrotype copper, melted under charcoal and left

Metallurgy

before 1889

Raw roasted black copper, "Rohrost-Schwarzkupfer"

Metallurgy

before 1889

Coal from the Albion Mines, Pictou County, Nova Sc

Metallurgy

before 1889

Bog iron ore from old lake deposits in Holland, co

Metallurgy

before 1889

Foundry pig-iron, Dunbar Iron Works, Pennsylvania

Metallurgy

before 1889

Specimen of Cornish Stone (China Stone, medium gra

Ceramics

Blast furnace slags, from Espedal, Norway, communi

Metallurgy

before 1889

Long primer type, No.11, made in 1846

Metallurgy

1846

Coal from Lao Tsa Gulley, China

Metallurgy

before 1889

Northampton iron ore showing the origin of the fer

Metallurgy

before 1889

Wigan cannel coal in association with ordinary coa

Metallurgy

1843-1889

Clay ironstone from the Wealden on the shore near

Metallurgy

before 1889

Cobalt ore, from South Africa, north of the diamon

Metallurgy

before 1889

Uniform black glassy blast-furnace slag, produced

Metallurgy

before 1889

Filings of an alloy of silver and tin. Used to for

Metallurgy

before 1889

Overpoled copper from the Spitty Copper Works, Swa

Metallurgy

1848

Tungstate of soda

Metallurgy

before 1889

Three specimens - various experimental blade formation, 1895-1901

Motive Power

1895-1901

Ferro-manganase, containing about 50 per cent. of

Metallurgy

before 1889

Specimens illustrating the unintentional welding t

Metallurgy

before 1880

Square bar of steel tilted from ingot no.2 at weld

Metallurgy

before 1889

Copper accidentally crystallised, from the Mines R

Metallurgy

1869

Crystallised slag, Muldner Hutte

Metallurgy

before 1889

"Ore furnace regulus," Mines Royal Copper Works, 1

Metallurgy

1869

Result of bad copper being used in brass making

Metallurgy

before 1889

Artificial graphite from iron furnaces

Metallurgy

before 1889

Mean sample of grey slag, Walker, Parker and Co.'s

Metallurgy

1848

Part of the 10-yard, or thick coal, from Grace Mar

Metallurgy

1843-1889

Alloy of three parts of lead to one of tin

Metallurgy

before 1889

Basic slag from a hot-blast-furnace, Russell Hall,

Metallurgy

before 1889

Titanifeous iron ore from the Laurentian Rocks of

Metallurgy

before 1889

Copper ore from the Bell Mine, Butte, Montana, USA

Metallurgy

before 1889

Sample of chilling iron, cast at the London Road I

Metallurgy

before 1889

Copper from Corsica, from the French Department of

Metallurgy

before 1862

Hollow hemisphere of mild steel, manufactured at L

Metallurgy

1886

Fuels of Modern Origin. Sample of decayed oak wood

Metallurgy

1843-1899

Gold from 500 grains of lead ore

Metallurgy

before 1889

Small bar of best iron, broken cold, made at the C

Metallurgy

1859

Meteoric iron, rusted portion reduced in hydrogen

Metallurgy

before 1889

Brass wire which has become brittle by keeping for

Metallurgy

before 1889

Composite plate of iron and steel in the rough sta

Metallurgy

1887

Mass of slag from an iron furnace at work in the j

Metallurgy

before 1889