Since the author's time the conditions have been completely changed by the introduction of railways.

The East Indian, Great Indian Peninsular, and other railways now enter the Nerbudda Valley, so that the produce of most districts can be readily transported to distant markets.

A large enhancement of the land revenue has been obtained by revisions of the settlement.
6.

Details will be found in the _Central Provinces Gazetteer_ (1870).
The references are collected under the head 'Iron' in the index to that work.

Chapter VIII of _Ball's Economic Geology of India_ gives full information concerning the iron mines of the Central Provinces and all parts of India.