Indiana university, 1820-1904; historical sketch, development of the course of instruction, bibliography . DEPARTMENT OF PHYSICS-A Modified Wehnelt IntereupterDesigned by Professor A. L. Foley and Mr. R. E. Nyswander. progress in the laboratories along the following lines: the spectrum ofradium; the ^-rays and other radiations; the effect of radiation upon elec-trolytic resistance; the electromotive force in electrolytes in a variablemagnetic field. 112 Departments of Liberal Arts Besides a innnl)tv of rooms for special purposes, the Department ofPhysics occupies two research hiboratories, and
Indiana university, 1820-1904; historical sketch, development of the course of instruction, bibliography . DEPARTMENT OF PHYSICS-A Modified Wehnelt IntereupterDesigned by Professor A. L. Foley and Mr. R. E. Nyswander. progress in the laboratories along the following lines: the spectrum ofradium; the ^-rays and other radiations; the effect of radiation upon elec-trolytic resistance; the electromotive force in electrolytes in a variablemagnetic field. 112 Departments of Liberal Arts Besides a innnl)tv of rooms for special purposes, the Department ofPhysics occupies two research hiboratories, and live rooms are used forelementary laboratories, one devoted to general practice, and four smallrooms for work in sound and light. The lecture room has an elevatedfloor and is seated Avith taldet-arm opera chairs. It is provided with auto-. DEPARTMENT OF PHYSICS-A Brasheae Mounting for a Rowland GratingConstructed in the Department. matic blinds, screens and Idackboards, all under the immediate controlof the lecturer. The lecture table is built in three sections, and the plumb-ing and wiring are arranged so that one, two, or three sections may beused at a time. At the table the lecturer has battery and dynamo currents(alternating and direct), rheostats, illuminated dial voltmeters and amme- (9) 113 Indiana University ters, electric motors, calcium and electric lanterns, low and high resistanceprojecting galvanometers, water, steam, gas, oxygen, acetylene, compressedair, exhaust cocks, and permanent connections to a standard clock. All thelaboratories are supplied with water, gas and electricity. The floors areof concrete. There are fifteen large masonry piers and more than threehundred lineal feet of six-inch stone wall shelves. All the developing rooms
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