94 
THE HON. SIR CHARLES ALGERNON PARSONS: EXPERIMENTS ON 
Experiment. 
2-inch mould; |-inch carbon core bored and y^-inch iron rod placed 
inside, sodium chloride packed round, 20 tons pressure, 8 k.w.m. total 
heating. 
2-inch mould; aluminium coil core, wood charcoal round, phosphorus at 
base, 6 tons pressure, .3 k.w.m. total heating, heating 1| minutes. 
4-inch mould ; 1-inch aluminium rod core, drilled centre f-inch filled 
with carborundum charcoal around, 20 tons pressure, 50 k.w.m. total 
heating, heating 1 minute. 
2-inch mould; carbon rod core, phosphorus and carborundum round, 
graphite on top, 20 tons pressure, 8 k.w.m. total heating, heating 
14 seconds. 
4-inch mould; magnesium and silicon carbide core, magnesia round, 
graphite top and bottom, 20 tons pressure, 57 k.w.m. total heating, 
heating 2 minutes. 
4-inch mould; 1-inch carbon core, boric anhydride round, 20 tons 
pressure, 22^ k.w.m. total heating, heating 5| minutes. 
9-inch mould; 2-inch carbon core surrounded by wood charcoal, poles 
water jacketed, 10 tons pressure, 400 k.w.m. total heating, heat melted 
lower pole and made hole into water cavity causing explosion, molten 
iron shot out on to floor and walls, heating 4^ minutes. 
4-inch mould ; 1-inch carbon rod core, drilled f-inch hole, filled with 
calcium carbide, sand top and bottom, 30 tons pressure, 50 k.w.m. 
total heating, heating 20 minutes. 
4-inch mould; ^-inch carbon core, sand, carbon silicide, and calcium 
carbide in layers round it, 30 tons pressure, 40 k.w.m. total heating, 
heating 8 minutes. 
Same arrangement of mould, but calcium carbide and carlron silicide 
only, plus small amount of sulphur, 30 tons pressure, 7 k.w.m. total 
heating, some iron present from bottom poles, and also CO produced, 
heating 1 minute. 
4-inch mould ; ^-inch carbon core, sand top and bottom, |-inch layer of 
calcium sulphide in middle, 28 tons pressure, 30 k.w.m. total heating, 
some iron present from bottom pole, also CO produced, heating 
20 seconds. 
Same, but layer of calcium carbide, sulphur added to sand. 
4-inch mould; f-inch carbon rod core, sand top and bottom, calcium 
oxide in centre, plus 5 per cent, ferric oxide, 30 tons pressure, 
47 k.w.m. total heating, heating 15 minutes. 
4-inch mould ; j^-inch carbon rod core, slaked lime top and bottom, 
.sand in middle, 30 tons pressure, 14 k.w.m. total heating, heat of 10 
to 20 kilowatts applied for 30 seconds, four times, with 30 seconds 
intervals. 
4-inch mould; slaked lime top and bottom, sand, salt (10 per cent.) 
in middle, 30 tons pressure, 8 k.w.m. total heating, heating 
35 seconds. 
Result. 
Nil. 
Nil. 
Altered carborundum. 
Nil. 
Nil. 
Nil. 
Several good crystals from 
ejected iron spherules. 
Nil. 
Nil. 
Several good crystals which 
burnt in oxygen. 
Some good crystals, some 
burnt in oxygen. 
Many crystals which burnt 
in oxygen. 
Nil. 
Nil. 
Nil. 
