Summary

1911 Encyclopædia Britannica, Volume 15… (1911)

The most extensive exposure occurs at Bahadur Khel, on the south bank of the Teri Toi. The annual output is about 16,000 tons, yielding a revenue of £40,000. Petroleum springs exude from a rock at Panoba, 23 m. east of Kohat; and sulphur abounds in the northern range. In 1901 the population was 217,865, showing an increase of 11% in the decade. The frontier tribes on the Kohat border are the Afridis, Orakzais, Zaimukhts and Turis.
Source: Wikisource

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