CONTENTS. 



Page. 

 On tlie Cretaceous and other Rocks of the SoUTn ArCOT and 

 TmcHiNOPOLT Districts, Madras. By Henry F. 

 Blanford, Geological Survey of India „ 1 



Page. 



Part I. Chap. I. General Summary of previous researches 1 



„ II. General Description of Country 16 



Pakt II. § 1. Descriptive details — Trichinopoly District. 



Chap. III. Trichinopoly District — Crystalline Rocks 27 



„ IV. „ „ Plant Beds 39 



- „ V. „ „ Ootatoor Group, 



(a.) Coral Reef Lime- 

 stone 52 



„ VI. „ „ Ootatoor Gi'oup, 



(b.) Ootatoor Beds... 73 



„ VII. „ „ Trichinopoly Group 107 



,, VIII. „ „ Arrialoor Group 125 



Part II. § 2. Verdachellum and Pondicherry areas. 



Chap. IX. Verdachellum area — Arrialoor Group 144 



„ X. Pondicherry area — Arrialoor and Valudayut 



Group s 151 



„ XL Cuddalore Sandstones 1G5 



,, XII. Soils and superficial deposits 180 



Part III. Economic Geology 200 



