CONTENTS. 



PART i. 



Notes on the Geology of the Son Valley, by R. D. OLDHAM, 



A.R.S.M., F.G.S. 



Chapter I. — Introduction ........ 1 — 3 



„ II.— Stratigraphy .4 — 35 



„ III. — Physical Geography and its Evolution . • . 36 — 57 



„ IV. — Petrographical Notes on the rocks of Bijawar type, by 



E. Vredenburg, b.l., b.s c . (Paris), a.r.c.s. . . 58 — 92 



„ V. — The Volcanic Rocks of the Lower Vindhyan Series, 



by E. Vredenburg, b.l., b.Sc. (Paris), a.r.c.s. . 93—108 



„ VI. — Notes on the country between the Son and the Banas, 



by R. D. Oldham, a.r.m.s., f.g.s. . . . . 109—120 



„ VII. — Notes on the country between the Banas and Long. 



82 00' E., by R- D. Oldham, a r.s.m., f.g.s. . 121 — 124 



„ VIII. — Notes on the country north of the Son between Long. 

 82° and 82 30' E., by R. D. Oldham, a r.s.m., 

 f.g.s. 125—140 



„ IX. — Notes on the country north of the Son and west of 

 Long. 8o°3o'E., by P N. Datta, b.s c . (London), 



F.G.S. ........ I4I — l6l 



„ X. — Notes on the country east of Long. 82 30' E , by 



R. D. Oldham, a. r.s.m., f.g.s. .... 162 — 171 

 „ XL — Economic Geology, by R. D. Oldham, a. r.s.m., f.g.s. . 172 — 174 



Geographical Index to places mentioned in the pre- 

 ceding Memoir. 175—178 



PART 2. 



A Geological Sketch of the Baluchistan Desert and part of 

 Eastern Persia, by E. VREDENBURG, B.L., B.Sc. 

 (Paris), A.R.C.S. 



Part I.-(GENERAL). 



Chapter I. — Introduction — Previous Observers . . • . 179 — 184 

 „ II.— Physical Features . ... . . . 185—193 



„ III.— Geological Divisions ...... .194—217 



Part II.— (DETAILED DESCRIPTIONS). 



Chapter I. — Description of Sections ...... 218 — 269 



„ II. — Recent Volcanoes ....... 270 — 287 



