. The story of a grain of wheat. r-mill at Rohrschach, Switzerland. This wasnever developed. Jakob Sulzberger, of Frauen-feld, Switzerland, invented the first successful sys- THE STORY OF A GRAIN OF WHEAT 167 tern of grinding cereals by rolls. His mill wasbuilt in 1832 and started in 1833, and was an im-mediate and complete success. The honour ofthe invention, as well as the practical adaptationof chilled-iron rolls for making flour, belongsunquestionably to Switzerland, and there is nolack of evidence to prove it. Sulzberger subse-quently erected roller-mills at Mayence, Milan,Munich, Leipzig
. The story of a grain of wheat. r-mill at Rohrschach, Switzerland. This wasnever developed. Jakob Sulzberger, of Frauen-feld, Switzerland, invented the first successful sys- THE STORY OF A GRAIN OF WHEAT 167 tern of grinding cereals by rolls. His mill wasbuilt in 1832 and started in 1833, and was an im-mediate and complete success. The honour ofthe invention, as well as the practical adaptationof chilled-iron rolls for making flour, belongsunquestionably to Switzerland, and there is nolack of evidence to prove it. Sulzberger subse-quently erected roller-mills at Mayence, Milan,Munich, Leipzig, and Stettin, and in 1839 the Pes~ter Walzmlihle of Budapesth was equipped withchilled-iron rolls made in Rohrschach by Helfen-burger, and finished by Sulzberger in Frauenfeld Mill Company, the original roller-mill, continued in business until 1846, when it be-came out of date, and its owners decided not torebuild it. During the early 8os rolls rapidly supersededthe mill-stone in all the principal mills in the United. Interior of a Modern Mill. States and Canada, and soon became the standardfor new and modern mills the world over. Themill-stone had served its allotted time and was re-tired with high honours and pleasant memories. 168 THE STORY OF A GRAIN OF WHEAT It is now hopelessly obsolete, except in remotedistricts into which the latest milling inventionshave not penetrated. These are few and far be-tween in the milling sections of America. Fol-lowing the purifier and the roll came a train ofuseful inventions which were incorporated in theroller system of milling—dust-collectors, scourers,bolters, separators, sifters, and other the radical changes incident to the revolu-tion in milling, and the rebuilding and remodel-ing of many mills from stones to the roller sys-tem, the progress of the trade mechanically hasbeen in the direction of minor improvements, anda closer attention to economy in cost of produc-tion, made necessary by the most intense
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