CONTENTS. 



PART III INFRA-RED TRANSMISSION SPECTRA. 



Page 



Chapter 1 7-15 



Introduction 7~9 



Present method of investigation 9-10 



Pleochroism , II 



Apparatus and methods 12-13 



Accuracy attainable 13 



Preparation of the mineral sections 14-15 



Scope of present investigation 15 



Chapter II. Transmission spectra of different minerals 17-7 



Group I : Minerals containing water of crystallization 17-4 



Group II : Minerals containing water of constitution 4O-53 



Group III : Miscellaneous compounds 53~70 



Sulphates 53-57 



PART IV. INFRA-RED REFLECTION SPECTRA. 



Chapter 1 73-75 



Introduction 73 



Apparatus and methods 73-75 



Chapter II. Infra-red reflection spectra of various substances 77-106 



Reflection of sulphates 77-79 



Reflection of carbonates and silicates 80-90 



Reflection of sulphides 91-93 



Transparency to x-rays 95 



Reflection of metals 95-99 



Reflection of solutions 99-105 



Summary 105-106 



Tables of maxima 107-109 



Appendixes 110-127 



Appendix I : The temperature of the moon 110-115 



Appendix II : Additional data 116-117 



Appendix III : The emission spectrum of burning carbon disulpride, 



etc i 18-120 



Appendix IV : A vacuum radiomicrometer 121-125 



Appendix V : Note on blowing fine quartz fibers 126-127 



Index to minerals examined . 128 



