1 Table of Contents: “...Reich Thalers & Pechblende -- Ionizing x-rays -- Radioactive rocks -- European radium sales...”

2 Table of Contents: “... -- Lateritic Ore Deposits (Ni-Al) -- Radioactive and Rare Earth Elements -- Marbles -- Other Industrial...”

3 Table of Contents: “..., electricity and radioactivity -- 3. The elements of crystallography -- 3.1 Introduction -- 3.2 The internal...”