" This river, at first known as the Tench, was afterwards named the Nepean by Phillip, when its identity as a tributary of the Hawkesbury had been confirmed.

In May, 1791, Tench and Dawes started from Rose Hill and confirmed the supposition that the Nepean was an affluent of the Hawkesbury, a matter over which there had been some doubt since its first discovery by Tench.

He crossed the Nepean and established a depot at a place known as Nattai, whence the waggon was sent back to Sydney for provisions, Barallier, with the remainder of his men and a native, pushing out westwards.

On this trip he found that by keeping on the crowning ridge or dividing water-shed between the streams running into the Nepean and those that fed what he then took to be an inland river, he got along fairly well.

After breakfast on the 6th of June, they crossed the Nepean, their provisions, with the exception of a little flour, being quite consumed.

It was on Saturday, the 20th of November, 1813, that Evans, in charge of five men, one of whom had been with Blaxland's party, started from the point of forest land on the Nepean known as Emu Island.

The party reached the Nepean on their return journey on the 8th of January, 1814.

Nepean River.

Between the period of my return from the Derwent and the second week of March we were prevented from making any preparation for our second voyage to the North Coast by an unusual continuance of the heavy rains incident to that season; which caused three floods on the Hawkesbury and Nepean Rivers and did considerable damage to the ripening crops.

The Nepean and Hawkesbury Rivers had been flooded, by which the growing crops had been considerably injured, but happily the colony has long ceased to suffer from these once much-dreaded inundations: a great portion of upland country out of the reach of the waters is now cultivated, from which the government stores are principally supplied with grain.

The Russian PlainsExamples of 'senility.' Greater complexity in the Blue Mountainsthese are undoubted earth folds; the Nepean River flows through an offshoot of a fold, the valley being made as the fold was elevatedcurious valleys made by erosion of hard rock overlying soft.

When in the latter we saw Flinders Point between Lonsdale and Nepean Points, and as we came down the channel, the last two points were just open of each other.

Returning to the ship we placed a buoy* on the five-fathom bar at the eastern entrance of the South Channel, the bearings from which are Whale Head South 33 degrees West, and Arthur's Seat South 79 degrees East; Points Nepean and Lonsdale being a little open.

The position of this light being so far within the entrance it is only visible between South-West 1/2 West, and South 1/4 West; and a light placed at the extremity of the rocky ledge off Point Nepean would be of infinitely more service in showing vessels the entrance of the port.

After passing Point Nepean steer for Arthur's Seat, keeping Point Flinders open south of Lonsdale Point until the last cliffy projection is passed and bears South 1/4 West.

Then steer half a point to the left of Arthur's Seat, shutting in Point Flinders with Point Nepean, and keeping Point Lonsdale a little open of the latter.