* For Sale by Superintendent of Documents. Paper, 25c. single copy, $1.00 a yr. (4 nos.).
Notes:
CONTENTS.—Constants of spectral radiation of uniformly heated inclosure, or socalled black body, 1; by W. W. Coblentz.—Melting points of refractory elements: 1, Elements of atomic weight from 48 to 59; by G. K. Burgess and R. G. Waltenberg.— High-frequency ammeters; by J. H. Dellinger.
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* For Sale by Superintendent of Documents. Paper, 25c. single copy, $1.00 a yr. (4 nos.).