Part III.-(PETROLOGY AND ECONOMIC GEOLOGY). 



[ON 1. — Petrology ........ 288—291 



„ II. — Economic Geology ...... 291 — 294 



List of illustrations . ....... 295—302 



PART 3. 



Petrological Notes on some Peridotites, Serpentines, Gabbros, 

 and Associated Rocks from Ladakh, North-Western 

 Himalaya, by Lieutenant- General C. A. McMAHON, 

 F.R.S., F.G.S. 



Introduction 

 Peridotites 

 . Serpentines 

 Gabbros . 

 Porphyritic Diorite 

 Hornblende Rocks 



Volcanic Ash . 

 Explanation of Plates 



303- 3'o 



310—312 



312—320 



320—321 



321—325 

 324—325 

 325-329 

 329 



