The American journal of science, & c . 1500. The nutritious matter of the crop of potatoes to that ofwheat is as 6600 to 1500, or as 56 to 15. The starch might be obtained by a very simple machine,i^commended by Parmentier; and in seasons when potatoesare abundant, the potatoes might be converted to starch, andthe starch preserved for any length of time, and used as asubstitute for wheaten flour. The machine alluded to is a cylinder of wood about threefeet long and six inches in diameter, covered with sheet tin,punched outward so as to form a coarse grater, and turned bya ci-ank. This cylinder
The American journal of science, & c . 1500. The nutritious matter of the crop of potatoes to that ofwheat is as 6600 to 1500, or as 56 to 15. The starch might be obtained by a very simple machine,i^commended by Parmentier; and in seasons when potatoesare abundant, the potatoes might be converted to starch, andthe starch preserved for any length of time, and used as asubstitute for wheaten flour. The machine alluded to is a cylinder of wood about threefeet long and six inches in diameter, covered with sheet tin,punched outward so as to form a coarse grater, and turned bya ci-ank. This cylinder is placed in a box of boards whosesides slope a little inward upon the principle of a hopper, anda tub of water is placed beneath: The potatoes are throwninto this box, and as the crank is turned they are crushed, andthe starch or fecula subsides to the bottom of the water. Itis well known, that potatoes are largely used in Englandmixed with flour to form a very good bread ; the starch of thepotato would of course answer much A]K(CMIBA]LilID IB]€M Mo Bo Biographical Jiotice of Dr. Bruce. 299 MISCELLANEOUS. Art. XVIII. Biographical Notice of the late ArchibaldBruce, M. D. Professor of Materia Medica and Mine-ralogy in the Medical Institution of the State of Nezo-York, and Queens College, Kezo-Jersey ; and Member ofvarious Learned Societies in America and Europe, Witha Portrait. (Communicated.) X^OCTOR Archibald Bruce, (the subject of this Memoir)was a native of the city of New-York, in North America. Hewas born in the month of February, in the year seventeenhundred and seventy-seven. His father was, at that time, atthe head of the medical department of the British army, (thenstationed at New-York) to which he had been attached fromhis youth, having been many years previously resident at New-York, as surgeon to the artillery department; where he wasmarried, in or about the year seventeen hundred and sixty-seven, to Judith, a daughter of Nicholas Bayard, formerly o
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