Light visible and invisible : a series of lectures delivered at the Royal Institution of Great Britain, at Christmas, 1896 (1897)
Thompson, Silvanus Phillips, 1851-1916, Royal Institution of Great Britain · New York : Macmillan · leaf 288
laboratory, it is fitted up with working benchesdown the middle and along the two sides, the benches beingdivided into separate stalls to isolate candidates in their work. Itwas stated that the middle stalls and benches are taken down whenthe hall is used for written examinations, and are… … Fig. 140.—Professor W. K. Rontgen. vi RONTGEN LIGHT 263 expected of the professor that he shall contribute to theadvancement of science by original investigations. Withsuch material and intellectual encouragements to researchas surround the university professor in even the smallestof universities…
Light · X-rays
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