[Continuing Bulletin of Bureau of Standards. Scientific papers 330-368 are included in this volume. Each paper is also published separately in advance.]
Notes:
[Continuing Bulletin of Bureau of Standards. Scientific papers 330-368 are included in this volume. Each paper is also published separately in advance.] * For Sale by Superintendent of Documents. Cloth, $2.00.
Notes:
CONTENTS.—Decrease in ultra-violet and total radiation with usage of quartz mercury vapor lamps; by W. W. Coblentz, M. B. Long, and H. Kahler.—Relation connecting derivatives of physical quantities; by Mayo D. Hersey.—Preliminary determination of thermal expansion of molybdenum; by Lloyd W. Schad and Peter Hidnert.—Optical conditions accompanying striae which appear as imperfections in optical glass; by A. A. Michelson.—New forms of instruments for showing presence and amount of combustible gas in air; by E. R. Weaver and E. E. Weibel.—Effect of rate of temperature change on transformations in alloy steel; by Howard Scott.—Simplification of inverse-rate method for thermal analysis; by P. D. Merica.—Constitution and metallography of aluminum and its light alloys with copper and with magnesium; by P. D. Merica, R. G. Waltenberg, and J. R. Freeman, jr.—Some optical and photoelectric properties of molybdenite; by W. W. Coblentz and H. Kahler.—Standardization of sulphur boiling point; by E. F. Mueller and H. A. Burgess.—Standardized method for determination of solidification points, especially of naphthalene and paraffin; by R. M. Wilhelm and J. L. Finkelstein.— Airplane antenna constants;by J. M. Cork.—Reflecting power of stellite and lacquered silver; by W. W. Coblentz and H. Kahler.—Location of flaws in rifle-barrel steel by magnetic analysis; by R. L. Sanford and Wm. B. Kouwenhoven.—Spectral photoelectric sensitivity of silver sulphide and several other substances; by W. W. Coblentz and H. Kahler.—Measurements of wave lengths in spectra of krypton and xenon; by Paul W. Merrill.—Oxygen content by Ledebur method of acid Bessemer steels deoxidized in .various ways; by J. R. Cain and Earl Pettijohn—Heat treatment of duralumin; by Merica, P. D.Waltenberg, R. G.Freeman, J. R. jr. P. D. Mercia, R. G. Waltenberg, and H. Scott.—Use of modified Rosenhain furnace for thermal analysis; by H. Scott and J. R. Freeman, jr.—Photoelectric spectrophotometry by null method; by K. S. Gibson.—Equilibrium conditions in system carbon, iron oxide, and hydrogen in relation to Ledebur method for determining oxygen in steel; by J. R. Cain and Leon Adler.—Dependence of input impedance of 3-electrode vacuum tube upon load in plate circuit; by John M. Miller.—Thermal expansion of insulating materials; by Wilmer H. Souder and Peter Hidnert.—Variation in direction of propagation of long electromagnetic waves; by A. Hoyt Taylor.—Principles of radio transmission and reception with antenna and coil aerials; by J. H. Dellinger.—Determination of output characteristics of electron tube generators; by Lewis M. Hull.—Microstructure of iron and mild steel at high temperatures; by Henry S. Rawdon and Howard Scott.—Constants of radiation of uniformly heated inclosure; by W. W. Coblentz.—Concerning annealing and characteristics of glass [with bibliography]; by A. Q. Tool and J. Valasek.—Efflux of gases through small orifices; by Edgar Buckingham and Junius David Edwards.— Methods for computing and intercomparing radiation data; by W. W. Coblentz.—Magnetic testing of straight rods in intense fields; by W. L. Cheney.—Distribution of energy in spectrum of acetylene flame; by W. W. Coblentz.—Preparation and reflective properties of some alloys of aluminum with magnesium and with zinc; by R. G. Waltenberg and W. W. Coblentz.—Relation of voltage of dry cells to hydrogen-ion concentration; by H. D. Holler and L. M. Ritchie.—New interferential dilatometer; by Irwin G. Priest.—Contrast sensibility of eye; by Enoch Karrer and E. P. T. Tyndall.—Turbidity standard of water analysis; by P. V. Wells.—Ionization and resonance potentials for electrons in vapors of lead and calcium; by F. L. Mohler, Paul D. Foote, and H. F. Stimson.—Index.
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* For Sale by Superintendent of Documents. Cloth, $2.00.