National and Local Systems of Weights and Measures 1
(a) International Metric System 1
(b) Modern systems 2
(c) Systems of antiquity 14
Symbols，Basic Constants，Conversion Data，Dimensions，Definitions 16
(a) Symbols and abbreviations 16
(b) Fundamental constants of nature，accepted and conventional values 17
(c) Conversion factors and dimensional formulae 18
(d) Hydrometers 31
(e) Technical efflux viscometers 32
(f) Selected scientific and technical terms．Definitions，dimensional formulae，etc 34
Chemical Elements and Atoms 43
(a) Atomic numbers．Atomic weights for each year since 1880 43
(b) The Periodic System 46
(c) Isotopes 45
(d) Structure of the isolated atom 47
Termometry 52
(a) Thermometric scales 52
(b) Fixed points 53
(c) Resistance thermometers 54
(d) Liquid-in-glass thermometers 54
(e) Thermocouples 57
(f) Optical pyrometry 59
Laboratory Methods for Producing and Maintaining Constant Temperatures 61
(a) Temperatures below 0℃ 61
(b) Production of cold 62
(c) Temperatures above 0℃ 66
(d) Production of high temperatures 67
Laboratory Methods for Maintaining Constant Humidity 67
Barometry and Manometry 68
Psychrometry，Density of Moist Air，Change in Barometric Pressure with Altitude 71
Volume of Liquid Menisci 72
Weights and Weighing．Adjustment and Constancy of Weights；Correction for Air Buoyancy；Determination of Density 73
Calibration of Volumetric Vessels 80
Standard Buffer Solutions and Acid-base Indicators 81
High Vaccum Technique 91
Errors of Observation 92
METHOD OF ARRANGEMENT OF CHEMICAL SUBSTANCES AND SYSTEMS IN I．C．T． 96
PHYSICAL PROPERTIES OF CHEMICAL SUBSTANCES 98
Ready Reference Tables 98
(a) Explanatory introduction 98
(b) Elementary substances and atmospheric air 102
(c) Chemical compounds (including minerals) 106
(d) Chemical compounds arranged in the order of their properties 306
(e) Liquid crystals 314
(f) Crystallography of compounds of carbon 320
Crystal Structure．X-Ray Diffraction Data for Crystals and Liquids 338
Disperse Systems (＂Colloids＂) 354
Sweetening Agents 357
Odoriferous Materials 358
RADIOACTIVITY 361
International Table of the Radiocative Elements and their Constants 362
Physical Properties of Radioactive Elements 364
Artificial Disintegration of the Elements 365
Electron Emission Produced by Radiations from Radioactive Substances 365
Energy of Radioactive Processes 366
Chemical Effects of α-Particles 366
Saturation Current 367
Absorption in Liquids and Solids 368
Radioactive Radiations in Gases 369
β-Rays：Absorption and Diffusion in Liquids and Solids 370
Wave Lengths of γ-Rays 371
Ionizing Radiations from Ordinary Substances 372
Distribution of Radioactive Materials in the Atmosphere，the Hydrosphere and the Lithosphere 372
Age of Rocks and Minerals 381
ASTRONOMICAL AND GEODETIC DATA 384
Stars and Nebulae 384
(a) Spectral classes，masses，densities，temperatures，diameters 384
(b) Distribution 388
(c) Motions 389
Time．Units，Correlation of Chronological Eras，Equation of Time 391
The Solar System．Orbital Data，Selected Characteristics of the Members 392
Composition of the Atmosphere 393
The Earth．Figure，Size，Density 393
Gravity Data．At Over 400 Selected Stations．Correction for Depth and Height．The Gravitation Constant 395
AERODYNAMICS 402
LIST OF JOURNALS AND THERI KEY NUMBERS 412