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Each Ton of Pigiron required consequently:

2250 Kgrs of ore (2)

565 „ „ coal 380 „ „ limestone 3800 electrical horsepower hours (representing 0.43 electrical year horse powers.)

The following figures confirm the fact that the larger the electrical furnace is, proportionately the less electrical power actually is required: On December 12, 1906 by means ofa Dynamo of 55 Horsepower in Aix-La-Chapelle for

each Ton of Pig iron 1.1 year Horse power

On March 19/21 1908 by means of a Dynamo of 200 Horsepower in Ugine for each

Ton of Pigiron 0.43 year Horse power (8)

According to the analyses, which were made in the Laboratory in Ugine the Composition of the melted pig iron fluctuated between the following proportions :

C Si Mn S P Ti Va Cr

2.14 0.098 0 0.219 0.032 0.048 0

3.21 0.074 0.030 0.209 0.120 traces 0.23 0.23

4.24 0.364 0.152 0.055 0.135 0.009 0.14

3.77 0.560 0.126 0.071 0.126 0.012 0.12

STEEL

from pig iron obtained in the manner aforesaid and from

Java magnetic ironsand ore.

An experiment of the melting of the pig iron obtained from the Java magnetic ironore sand into steel has been executed in such a way, that in a separate Girod-furnace the pig iron, which had been melted to-

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