...of modern chemistry. The substances Mr. Mushet proposed to use, were " charcoal-dust, pitcoal-dnst, plumbago, or any substance containing the coaly or...method it was the work of from fourteen to twenty days. • • Mr. Mushet took out a patent for this process, but, owing to causes entirely unconnected with...

...carbon and all its metallic manganese." carbouaceous matter ; and then to that of Mr. Mackintosh, of converting iron into steel by exposing it to the action...means the process of conversion is completed in a few hoars; while by the old method, it was the work of from fourteen to twenty days. " Mr. Heath observes...

...vessel in contact with carbon" was yet to be discovered. It was only in 1825 that a British manufacturer took out a patent for converting iron into steel by exposing it to the action of carburetted hydrogen gas in a closed vessel, at a very high temperature, by which means the process...

...iron, and the consequent saving of space in the crucible. In the year 1825, Mr. Charles Mackintosh! took out a patent for converting iron into steel by...method it was the work of from fourteen to twenty days. •' * Mr. Mushet took out a patent for this process, but, owing to- causes entirely unconnected with...

...Mr. Mackintosh, of converting iron into steel, by exposing it to the action of carburetted hydrogen gas in a close vessel at a very high temperature,...method it was the work of from fourteen to twenty days. Mr. H. observes : — " Now, it appears to me that the Indian process combines the principles of both...

...iron, and the consequent saving of space in the crucible. In the year 1825, Mr. Charles Mackintosh-)- took out a patent for converting iron into steel by exposing it to the action of carburettedliydrogen gas in a close vessel, at a very high temperature, by which • Mr. Mushet tookouta...