Etrurian pottery prior to the foundations of Rome. Excelled in fine forms, and in a non-vitreous encaustic painting, which was lost till restored by Mr. Wedgwood. Still influences the taste of the inhabitants 291
Mr. Wedgwood's cameo of a slave in chains, and of Hope 315
Basso-relievos of two or more colours not made by the antients. Invented by Mr. Wedgwood 342
Petroleum and naptha have been sublimed. Whence jet and amber. They absorb air. Attract straws when rubbed. Electricity from electron the greek name for amber 353
Clefts in granite rocks in which metals are found. Iron and manganese found in all vegetables. Manganese in limestone. Warm springs from steam rising up the clefts of granite and limestone. Ponderous earth in limestone clefts and in granite. Copper, lead, iron, from descending materials. High mountains of granite contain no ores near their summits. Transmutation of metals. Of lead into calamy. Into silver 398
Armies of Cambytes destroyed by famine, and by sand-storms 435
Whirling turrets of sand described and explained 478
Granite shews iron as it decomposes. Marble decomposes. Immense quantity of charcoal exists in limestone. Volcanic slags decompose, and become clay 523
Millstones raised by wooden pegs 524
Hannibal made a passage by fire over the Alps 534