COM i 







< HAPTER XIV 



v aaouout . 194 



PART II 

 t \ DOOR- NVOK K 



KB Or INDOOR- WOftK. GEOLOGICAL SECTIONS . 209 



CHAPTER XVI 



KMICAL TESTS IN THE II 

 TION OF MINERALS AND ROCKS . 2l8 



< HAPTER XVII 



MICROSCOriCAI. INVESTIGATION . . 2J$ 



INDEX ........ 253 



