Structure of the Moon's Surface

List of Plates

List of Abbreviations

Foreword

Part I


1 The Librations of the Moon


1-1 Note on the Orbit of the Moon


1-2 The Librations of the Moon


2 Height Determinations of Points on the Moon's Surface


2-1 The Determination of Relative Heights


2-2 The Determination of Slopes


2-3 Lunar Formations in Profile


2-4 The Determination of Absolute Heights


2-5 Summary


3 The Figure of the Moon


3-1 Discovering the Non-Sphericity of the Moon


3-2 The Internal Constitution of the Moon


3-3 The Past History of the Moon


3-4 Conclusions


4 The Luminous Intensity and Luminescence of the Lunar Rocks


4-1 Relative Intensities in General. Albedo


4-2 Intensity Distribution across Full Moon


4-3 Variations in the Intensities of the Continents, the Maria, and the Rays, with Variation of Phase Angle: Models of the Surface of the Moon


4-4 Intensity Variations of Bright and Dark Spots


4-5 The Color and Intensity of the Ashen Light


4-6 Do the Moon's Rocks Fluoresce


4-7 Evidence for the Phenomenon of Luminescence


4-8 An Eruption in the Lunar Crater Alphonsus


4-9 Summary


5 The Color of Moonlight and the Composition of the Moon's Surface


5-1 Visual Work


5-2 Instrumental Methods and Results


5-3 Summary


6 On the Polarization of the Light Reflected by the Moon


6-1 Work Accomplished with Purely Optical Polarimeters


6-2 Photoelectric Polarimetry


6-3 Summary


7 On the Temperature of the Moon


7-1 Surface Temperatures from Stefan's Law


7-2 The Measurement of Surface Heat Changes


7-3 Measured Surface Temperatures


7-4 Summary of the Measured Temperatures, and Conclusions


8 The Problem of the Moon's Atmosphere


8-1 Simple Visual Observations


8-2 A Final Solution from the Kinetic Theory of Gases


8-3 Possible Evidence for an Atmosphere


8-4 Evidence from More Refined Techniques


8-5 Summary of the Estimates of the Density of the Moon's Atmosphere


9 The Probable Nature of the Moon's Surface; Changes Which Occur on the Moon


9-1 Deductions from the Size and Mass, from the Figure, and from the Surface Structures of the Moon


9-2 Deductions from the Intensity Variations and from the Color of Moonlight


9-3 Deductions from the Polarization of Moonlight


9-4 Deductions from the Observed Temperature Changes


9-5 The Effect of the Absence of an Atmosphere


9-6 Changes in the Moon's Surface: Apparent and Real


9-7 Are Tektites Samples from the Moon

Part II


10 Ray Systems


10-1 General Description


10-2 Special Aspects of some Ray Systems


10-3 Ray Dynamics applied to the Systems of Tycho and Copernicus


10-4 Relative and Absolute Times of Formation


10-5 On the Discrete Nature of the Rays


10-6 Dark Bands


11 The Grid System, and Lattice Patterns


11-1 Linear Features


11-2 The System Radial to Mare Imbrium


11-3 Intersecting Grids


11-4 Lattice Patterns and Their Time of Origin


11-5 Summary


12 Rilles, Faults, and Wrinkle Ridges


12-1 Description and Distribution of Rules


12-2 The Detailed Forms of Rules


12-3 The Associations of Rules with Faults and Ridges


12-4 On the Origin of Rules


12-5 Wrinkle Ridges


13 Crater Distribution and Frequency


13-1 The Spatial Distribution of Maria


13-2 The Frequency of Occurrence of Craters of Different Sizes


13-3 Anomalies in the Frequency Distribution of Craters


13-4 The Spatial Distribution of Craters


13-5 Crater-Pairs


13-6 Crater-Chains


13-7 The Other Side of the Moon


14 Conditions Relating to the Origin of the Moon's Surface Structure


14-1 Erosion and the Time Sequence of the Topographical Features


14-2 Origins of the Craters


14-3 The Nature of Maria


14-4 Summary of the Probable Time Sequence of the Craters


14-5 Domes and Plateau Craters


14-6 The Nature of the Forces which Produced the Grid System

Appendices

I Sources

II List of Constants

Index