... IMPORTS EXPORTS MOLES DREDGING RECONSTRUCTION EQUIPMENT HANDLING OIL FORECASTS EXTENSIONS STATISTICS FREMANTLE AMERY NORTHWARDS ALBANY DENMARK VICTORIA QUAY GERALDTON HOPETOWN BUSSELTON ESPERANCE LAKE Che 3netitution of Civil Engineers. SELECTED ENGINENKING PAPERS...

... of heating to 800"-830" C., quenching in water or oil, and tempering tothe requiredtoughness ; butthis heat-treatment is not applicable to large masses as it necessitates a very drastic quench, which is always undesirable. Instead, eurfacehardening may be employed. r 134 1 6 ,BROWNE ON THE MANUFACTURE...

..., which dates from palsolithic times, has been foundin the caverns a t Altamira in Spain. Wall paintings which retain aremarkable freshness have also been foundin the tombs of the Ancient Egyptians. Both theseare examples of the use of paint in decoration. Oil paints were not discovered till about...