Word: quartz
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...also received a large case of specimens of economic mineralogy. This collection includes samples of many articles of trade which are made from the earth. There are samples of asbestos, both in the commercial form and as it appears in the rocks. Carborundum is shown beside samples of quartz and coke, from which it is made...
...fifth and last of the series of illustrated scientific lectures in the University Museum, open to the public, will be given tomorrow afternoon at 3.30 o'clock, by Professor Douglas Wilson Johnson, on the subject of "Volcanoes, Active and Extinct." This replaces the lecture previously announced on "Quartz" on account of the temporary disability of Professor Palache. Professor Johnson will describe certain volcanoes which are now active, other which have been active in recent geological time, but which now appear to be extinct, and still others which have been extinct so long that they have been more or less completely...
...first meeting of the Physical Colloquium was held in the Jefferson Physical Laboratory yesterday afternoon. Professor Trowbridge spoke upon the value of quartz vessels for use in spectrum analysis, and Dr. Lyman discussed the following recent papers upon radio-activity: Deviable Rays of Radio-active Substances; The Cause and Nature of Radio-activity, both by Professor E. Rutherford; and Experiments on Induced Radio-activity in Air, by Professor J. J. Thompson...
Physical Colloqium. Quartz Vessels for Spectrum Analysis. Professor Trowbridge-Recent Papers on Radioactivity. Dr. Lyman. Jefferson Physical Laboratory, Room...
Physical Colloquium. Quartz Vessels for Spectrum Analysis. Professor Trowbridge.--Recent Papers on Radioactivity. Dr. Lyman. Jefferson Physical Laboratory, Room...