CONTENTS 



PART I. 



CHAPTER I.-GENERAL DESCRIPTION. 



Introductory, 1. — Area of country defined, 2.— Towns and communications, 

 2. — Climate, 3. — Fertility, 3. — The people, 4. — Mineral resources, 4. — 

 Previous literature, 6. — Work of the survey, 7 . . . . 1 — 7 



CHAPTER II.— PHYSICAL GEOLOGY. 



Table of rock formations, 7.— Marked features of low country and ghat step, 

 7. — How formed, 8. — Approximate age of, 9. — Minor orographic fea« 

 tures, 9. — The low plateaus of the coast, 10. — Age of, 10. — Shore line of 

 sandhills, 11. — Intermediate alluvial flat, 11. — Drainage system, 11.— 

 The passage of the Penner at the ghats, 12. — Approximate age of river 

 valley, 13.— The delta of the Penner, 13. — The Pulicat Lake and its 

 origin, 14. — The belt of coastal deposits may have been much wider, 14. 

 — Correspondence of physical features with arrangement of rock series, 

 15. — Less regularly arranged series, 16 . . . . . 7 — 16 



PART II. 



CHAPTER III.— THE GNEISSIC SERIES. 



The Nellore gneisses are generally foliated, 17. — The massive and schistose 

 gneisses, 17. — Succession of these, 18. — The mountain gneiss of Southern 

 India not represented, 18. — Classification of the Nellore gneisses, 18. — ■ 

 Correlation with other gneisses of India, 19. — With Scottish gneisses, 

 19. — The massive gneiss of the Swarnamukhi, 20. — Granitic and trappean 

 intrusions, 21. — The grey gneiss of Kalahasti, 22. — A certain likeness 

 to the massive gneiss of Southern India, 22. — More varied than the red 

 gneiss, 23. — Porphyritoid gneiss of Kalahasti, 23. — Breaks in continuity 

 of strike, 24. — The porphyritoid belt changes about Rapur, 24. — Inter- 

 ruptions of transition rocks, and faulting, 24. — The schistose gneisses, 

 25. — Change in the dip, 25. — Lithology, 25. — An eminently schistose 



