The highest peaks are situated in the still unexplored district of Talikan, N.W.
In height, and the Nizva mountain on the southern border of the unexplored district of Hazarjirib, north of Semnan, and the Shahkuh, between Shahrud and Astarabad, have an elevation exceeding r3,000 ft.
The census of Western Australia included only those aborigines in the employment of the colonists; and as a large part of this, the greatest of the Australian states, is as yet unexplored, it may be presumed that the aborigines enumerated were very far short of the whole number of persons of that race in the state.
Taking the Lachlan as one type of Australian river, we find it takes its rise amongst the precipitous and almost unexplored valleys of the Great Dividing Range.
Of Venus, but he was also expressly commissioned coox to ascertain " whether the unexplored part of the southern hemisphere be only an immense mass of water, or contain another continent."