Chapter 5

"Gradually the heat grew intense--but no one thought of moving. At first the Professor rambled on, but I doubt if anyone paid any attention to him. Amongst other things he told us that from the very start of his experiments he had worked on different lines from the usual ones, which consisted of dissolving carbon in molten iron and then cooling the mass suddenly with cold water. "'That sets up gigantic pressure,' he remarked, 'but it is too quick. Only small stones are the result. My process was arrived at by to…