[Scientific papers 439-468 are included in this volume. Each paper is also published separately in advance.]
Notes:
[Scientific papers 439-468 are included in this volume. Each paper is also published separately in advance.] * For Sale by Superintendent of Documents. Cloth, $2.00.
Notes:
CONTENTS.—Sensitometry of photographic emulsions and survey of characteristics of plates and films of American manufacture; by Raymond Davis and F. M. Walters, jr.—Spectral transmissive properties of dyes; 1, Seven permitted food dyes in visible, ultra-violet, and near infra-red; by K. S. Gibson, H. J. McNicholas, E. P. Tyndall, M. K. Frehafer, with cooperation of W. E. Mathewson.—Notes on standard wave lengths, spectrographs, and spectrum tubes; by W. F. Meggers and Keivin Burns.—Wave length measurements in arc spectra of neodymium and samarium; by C. C. Kiess.— Measurement of color temperature of more efficient artificial light sources by method of rotatory dispersion; by Irwin G. Priest.—Practical spectrographic analysis; by W. F. Meggers, C. C. Kiess, and F. J. Stimson.—Piezo-electric method for instantaneous measurement of high pressures; by J. C. Karcher.—Spectrophotoelectrical sensitivity of argentite (Ag2S); by W. W. Coblentz.—Theory, construction, and use of photometric integrating sphere [with bibliography]; by E. B. Rosa and A. H. Taylor.—Decarburization of ferrochromium by hydrogen; by Louis Jordan and F. E. Swindells.— Radio-frequency amplifiers; by P. D. Lowell.—Electron tube amplifier using 60-cycle alternating current to supply power for filaments and plates; by P. D. Lowell.— Spectrophoto-electrical sensitivity of bournonite and pyrargyrite; by W. W. Coblentz and J. F. Eckford.—Structure of martensitic carbon steels and changes in microstructure which occur upon tempering; by H. S. Rawdon and S. Epstein.—Preparation and properties of pure iron alloys: 1, Effects of carbon and manganese on mechanical properties of pure iron; by Robert P. Neville and John R. Cain.—Action of charred paper on photographic plate and method of deciphering charred records; by Raymond Davis.—Tables for calculation of inductance of circular colls of rectangular cross section; by Frederick W. Grover.—Spectrophoto-electrical sensitivity of some halide salts of thallium, lead, and silver; by W. W. Coblentz and J. F. Eckford.—Gases in metals; 1. Determination of combined nitrogen in iron and steel and change in form of nitrogen by heat treatment; by Louis Jordan and F. E. Swindells.—Apparatus for determination of magnetic properties of short bars; by M. F. Fischer.—Structure of fucose [with bibliography]; by E. P. Clark.—Further tests of stellar radiometers and some measurements of planetary radiation; by W. W. Coblentz.—Spherical aberration of thin lenses; by T. Townsend Smith.—Various photo-electrical investigations; by W. W. Coblentz.—Preparation and properties of pure iron alloys: 2, Magnetic properties of iron-carbon alloys as affected by heat treatment and carbon content [with bibliography]; by W. L. Cheney.—Preparation and properties of pure iron alloys: 3, Effect of manganese on structure of alloys of iron-carbon system; by Henry S. Rawdon and Frederick Sillers, jr.—Composition, purification, and certain constants of ammonia [with list of references]; by E. C. McKelvy and C. S. Taylor.—Wave length measurements in arc spectra of gadolinium and dysprosium; by C. C. Kiess.—Specific volume of saturated ammonia vapor [with list of references]; by C. S. Cragoe, E. C. McKelvy, and G. F. O'Connor.—Formulas and tables for calculation of inductance of coils of polygonal form; by Frederick W. Grover.—Index.
Availability:
* For Sale by Superintendent of Documents. Cloth, $2.00.