One of the most important applications of the regenerative furnace has been to the manufacture of steel, and he soon perceived that it was necessary for himself to solve the various difficulties which others regarded as practically insuperable. “Having,” he says, “been so often disappointed by the indifference of manufacturers and the antagonism of their workmen, I determined in 1865 to erect experimental or ‘sample steel works’ of my own at Birmingham, for the purpose of maturing the details of these processes, before inviting manufacturers to adopt them.” The success of experiments in 1867-68, in making steel rails, brought about the formation of the Landore Siemens Steel Co., whose works were opened in 1874. When Dr. Siemens was knighted, the employés of this company embodied their congratulations in an address, and had prepared for him a very beautiful model of a steel furnace in ivory and silver; the presentation of these was prevented by his premature death, but the address stated that “the quantity of steel made here to the end of last year on your process was upwards of 400,000 tons!” In the ten years ending in 1882, the annual production of open-hearth steel in the United Kingdom increased from 77,500 tons to 436,000 tons. During an action in the Superior Courts of the United States, it was stated that the inventor had received a million dollars in royalties, the annual saving in that country by his process being 3¾ millions of dollars! These statements refer mainly, I believe, to the conversion of cast or wrought iron into steel, either by the “direct” process of acting on pig-iron with iron ore in an open hearth, or by the “scrap process” (Siemens-Martin) of melting wrought-iron and steel scrap in a bath of pig-metal. Both of these require the preliminary treatment of the blast furnace, and in speaking of them in 1873, Dr. Siemens said that “however satisfactory these results might appear, I have never considered them in the light of final achievements. On the contrary, I have always looked upon the direct conversion of iron and steel from the ore, without the intervention of blast furnaces and the refinery, as the great object to be attained.” How far he succeeded in this may be gathered from the fact that in a paper read on April 29, 1883, before the Iron and Steel Institute, on the “Manufacture of Iron and Steel by the Direct Process,” he showed how to produce 15 cwt. of wrought iron direct from the ore in three hours, with a consumption of 25 cwt. of coal per ton of metal, which is one-half the quantity previously required for the production of a ton of pig-iron only, in the blast furnace! The long and costly experiments which ended in the realisation of his views extended over twenty-five years; and it is worthy of note that he told the Parliamentary Committee on Patents that he would not have continued them if the English patent law had not insured such a period of protection as would repay him for his labor.