PROGRESS OF BESSEMER STEEL.

To speak of the enormous increase in the production of steel by the

introduction of the Bessemer process has become a commonplace on

occasions like the present, and yet I doubt whether its real

dimensions are generally known or remembered. In 1869 the manufacture

of Bessemer steel had already acquired what was then looked upon as a

considerable development in all the principal centers of metallurgical

industry, except the United States, but including our own country,

Germany, France, and Austria, and the world's production in that year

was 400,000 tons. Last year it was over 5,000,000 tons, and it has

doubled in every steel-producing country during the last four years,

except in France, where, during this latter period, the increase has

not been much more than one-fourth. What is almost as remarkable as

the enormous increase in the production of Bessemer steel is the great

diminution in its cost. In the years preceding 1875, the price of

rails manufactured from Bessemer ingots fluctuated between £10 and £18

per ton, and I remember Lord George Hamilton when he was

Under-Secretary for India of Lord Beaconsfield's administration in

1875 or 1876, congratulating himself on his good fortune in having

been able to secure a quantity of steel rails for the Indian

government at £13 per ton. Within the last three years we have seen

them sold under £4 10s. in this country, and £5 10s. in Germany and

Belgium.

Scientific American Supplement, No. 388, June 9, 1883 · 第 18 / 79 题