* For Sale by Superintendent of Documents. Paper, 25c. single copy, $1.00 a vol. (4 nos.).
Notes:
CONTENTS.—Testing of potentiometers; [by] Frank Wenner and Ernest Weibel.—Emissivity of metals and oxides: 1, Nickel oxide, NiO, in range 600° to 1300° C; [by] G. K. Burgess and P. D. Foote.—Adjustments of Thomson bridge in measurement of very low resistances; [by] Frank Wenner and Ernest Weibel.—Quantitative experiments in radiotelegraphic transmission; [by] L. W. Austin.—Measurements of standards of radiation in absolute value; [by] W. W. Coblentz.—Experimental study on Koepsel permeameter; [by] Charles W. Burrows.—Various modifications of bismuth-silver thermopiles having continuous absorbing surface; [by] W. W. Coblentz.
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* For Sale by Superintendent of Documents. Paper, 25c. single copy, $1.00 a vol. (4 nos.).