SYNOPSIS OF PAKT II. Ixxxix 
II. — In high-level laterite : — 
(a) On the Deccan Trap : — 
i. Bidar. 
' 2. Bijapur (Ingleswara) 
(6) On the Dharwars : — 
1. Talevadi in Belgaum. 
III. — In lateiitoid (always on the Dharwars) : — 
^ 1. Bengal: — ^Singhbhum. 
2. Bombay : — Dharwar, North Kanara. 
3. Central Provinces : — Jabalpur. 
4. Goa. 
5. Madras : — Bellary, Sandur. 
6. Mysure :— Chitaldrug, Kadur, Shimoga, Tumkur. 
IV. — ^In lateritic soil resting on the Deccan Trap : — 
1. Satara. 
V. — Exact mode of occurrence unknown : — 
1. Morbhanj. 
Although as a rule the lateritic deposits are not of great economic 
importance, yet the deposits of one area — the Sandur Hills — compare 
favourably, as regards total quantity of ore available near the surface, 
with those of almost any other area in India of similar size. 
[CHAPTER XX.] 
Mang-anese in the Tertiary and Recent Formations. 
Several interesting occurrences of manganese-ore of recent age are 
noticed, and then the origin of deep-sea manganese nodules is discu.s,?ed. 
From a consideration of the figures put forward by Murray it is 
concldded that had all the manganese that is being constantly brought 
into the oceans by the rivers remained in solution, every cubic mile 
of sea-water would now contain 1,140,600 tons of manganese sesqui- 
oidde, so that the manganese would form 0*7% of the total salts 
dissolved in sea-water. Since analyses of the total salts omit any 
reference to manganese, it is concluded that most of the manganese 
must have been removed from solution in the waters of the ocean. 
Reasoning from this point of view, and also considering the hypotheses 
