1 Table of Contents: “...A Differential Orbit Improvement Program for Lunar Orbiter -- Discussion -- IV / Topography...”

2 “... of the human efforts to map the topography of the surface of our satellite, from the days of pre-telescopic...”

3 Table of Contents: “... Topography of the Moon -- 13. Global Form of the Moon and its Gravitational Field -- 14. Relative Coordinates...”

4 Table of Contents: “... of the Moon -- 12. Exosphere of the Moon -- Three Topography of the Moon -- 13. Global Form of the Moon...”