DETAILED CONTENTS. 
Synopsis of Parts I, II, and III 
Page. 
Ixv— xcvii 
Part I. 
INTRODUCTION AND MINERALOGY. 
Chapter I.— Introduction. ♦ 
History of the investigation ..... 3 
Scope of this Memoir ...... 5 
Acknowledgments ....... q 
Analytical work ....... 8 
The visitor to India ...... 9 
Literature of Indian manganese-ore deposits . . 9 
Literature of foreign manganese-ore deposits . . 12 
Nature of manganese ...... 16 
Origin of the word manganese. . . . . 17 
Recognition as a new element. .... 17 
Distribution in Nature . . , . . . 18 
In the mineral I'ingdom ..... 18 
In the vegetable kingdom. ..... 19 
In the animal kingdom ..... 20 
Chapter II. — Mineralogy : General. 
Wide distribution of manganese in minerals and rocks 21 
Colours of manganese minerals . . . . 21 
Occurrence of manganese minerals .... 22 
List of known manganese minerals with their chief 
properties ....... 23 
List of Indian manganese minerals .... 34 
List of associated non-manganiferous minerals . . 35 
New species and varieties ..... 36 
Chapter III.— Oxides. 
Pyrophanite. ....... 37 
Dysluite 37 
