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Caption: Course Catalog - 1892-1893
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5° UNIVERSITY OF ILLINOIS. student, occasional or stated lectures are necessary, and these are fully illustrated by sketches, diagrams, drawings, and photographs of executed work. They are frequently used in the advanced classes, partly because the.deficiency of text-books is there most apparent. Additional courses of extended reading are marked out by references to the University library, so that each student may enjoy the greatest possible benefit from the course of instruction. In all courses of study offered by the College, drawing in its manifold forms and uses is made of especial importance both in its use and its modes of execution. TESTING LABORATORY. The testing laboratory has a Riehle testing machine of 100,000 pounds capacity, a smaller apparatus for testing beams, a Riehle cement testing machine, a stone grinding machine, a rattler for abrasion tests of stone and brick, with apparatus for making all necessary measurements and observations, molds, and standard sieves for cement, etc. The laboratory is fitted up as a working laboratory where students may acquire such practice in experimental work as engineers are called upon to perform, as well for the purpose of illustrating principles as for use in original investigation. The ordinary work includes testing metals, wooden beams, cement briquettes, and stone and brick. The hydraulic laboratory includes elevated tank and stand-pipe, steam pumps for giving high pressure, tanks for measuring flow of water, pressure gauges, meters, water motor, turbine, and other apparatus for experiments with orifices, weirs, etc. The experiments are made in connection with the regular class instruction. COMPUTING APPARATUS. A collection of machines and apparatus for abbreviating computations and especially for use in the calculation of tables, includes the following instruments: A Thomas's 10-place arithmometer, giving products of numbers to 20 places. This is the largest size manufactured and was imported especially for the University. It is probably as convenient and accurate as any computing machine yet invented. It performs addition, subtraction, multiplication, and division, and is particularly useful in calculating or verifying numerical tables. Two Thacher's computing scales, for performing multiplication, division, squaring, and extraction of square root. This instrument is sufficiently accurate for almost all purposes, and can be used more rapidly than the former. An Amsler's polar planimeter for
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