In the beginning of this month, in company with Mr.Dawes and Mr.Worgan, late surgeon of the 'Sirius', I undertook an expedition to the southward and westward of Rose Hill, where the country had never been explored.

We remained out seven days, and penetrated to a considerable distance in a S.S.W.direction, bounding our course at a remarkable hill, to which, from its conical shape, we gave the name of Pyramid-hill.

Except the discovery of a river (which is unquestionably the Nepean near its source) to which we gave the name of the Worgan, in honour of one of our party, nothing very interesting was remarked.
Towards the end of the month, we made a second excursion to the north-west of Rose Hill, when we again fell in with the Nepean, and traced it to the spot where it had been first discovered by the party of which I was a member, fourteen months before, examining the country as we went along.
Little doubt now subsisted that the Hawkesbury and Nepean were one river.
We undertook a third expedition soon after to Broken Bay, which place we found had not been exaggerated in description, whether its capacious harbour, or its desolate incultivable shores, be considered.

On all these excursions we brought away, in small bags, as many specimens of the soil of the country we had passed through, as could be conveniently carried, in order that by analysis its qualities might be ascertained..