Part 29 (1/2)

A whitelead, htest of all metals, its ore is, when rich, the heaviest of all metallic ores It has both sh it may be beaten into very thin leaves; and it fuses so quickly, that it requires a heat much less than is sufficient to make it red-hot

Was not the use of Tin very early known?

Tin was found in Britain froes; the Phenicians traded to Cornwall for this metal 600 years before Christ

Where are the principal Tin Mines?

In Saxony, Cornwall, and Bohemia Tin is also found in Spain, Sumatra, Siam, Mexico, and Chili A few specimens have been found at Goshen, in Massachusetts

_Specienerally found?

Tin is sometimes found native or pure, butof tin reat depth, and the hard rocks which obstruct the progress of the h the of do the inside of copper and iron vessels, and for various other purposes

_Obstruct_, to stand in the way

What is Lead?

A coarse, heavy rey color: it is so soft and flexible, that it is easily cut with a knife, and rolled out into sheets, &c; it is very fusible and inelastic, but less ductile and sonorous, than any other old, platina, andeleven times heavier than an equal bulk of water This metal loses its malleability in proportion as it is heated: as soon as it reyish-colored ashes are for frorains or powder, or for the ancients

_Flexible_, yielding, easily bent

_Sonorous_, giving sound when struck

Where is Lead found?

In various countries; but it abounds principally in Great Britain and Spain; the leadthe richest in the world Lead is a old, silver, and copper; hence it is eold and silver, as it separates all the dirt and i, particularly for covering gutters, pipes, &c; lead is also used in varnishes and oil-painting, andof all the earthen and pottery wares

_Refining_, cleansing, purifying

_Varnishes_, preparations for beautifying and preserving various articles

What is peculiar to the ore of Lead?

The ore of thisfrorass of all the neighboring places, and kills the animals which feed on it: culinary vessels lined with a mixture of tin and lead, are apt to convey pernicious qualities to the food prepared in the for different purposes

_Infects_, corrupts

_Culinary_, adapted to the purposes of cooking