ulating plain of trap formation resting on gray
sandstone; it is thinly wooded, and well grassed; water was abundant in
the creek below the camp; above the channel was dry, and soon divided
into small gullies; in the afternoon ascended a hill three-quarters of a
mile north-west of the camp; the lower portion was a dark compact trap or
basalt, and the summit a horizontal bed of sandstone about 200 feet above
the camp; the country to the north was very level, and only occasionally
interrupted by flat-topped sandstone hills, the view extending at least
thirty miles; to the south and south-west a country of trap formation
extended for twenty miles, and to the east the tableland rose about 300
feet above the camp, and was composed of the same strata as the hill
ascended, but surmounted by the ferruginous conglomerate, which is the
highest rock of the new red sandstone series.

Latitude by b Centauri, a Centauri and Arcturus 15 degrees 33 minutes 13
seconds.

ARNHEIM LAND. DALY RIVER.

29th June.

At 6.45 a.m. left the camp with Mr. H. Gregory to reconnoitre the country
to the east; ascending the tableland, steered east till 10.0 through a
level forest of stringybark and other eucalypti; the soil a light
gravelly loam, but well grassed; we then turned north-north-east for one
hour, along a shallow watercourse, and then east through level forest
country till 3.20 p.m., when we reached a small stream-bed trending
north-north-east, tracing it through wide grassy flats, which were on
fire; at 4.40 found a small pool of water, where we halted for the night.

30th June.

As this appeared to be a spot to which the party could be advanced with
safety, we left our bivouac at 6.50 a.m.; returning across the tableland,
reached the camp at 4.30 p.m.

1st July.

At 6.40 a.m. started an average course of 80 degrees magnetic, and
reached the waterholes in the small creek at 3.30 p.m. with the whole
party, and camped at our bivouac of the 29th June.

Latitude by b Centauri 15 degrees 30 minutes 19 seconds.

2nd July.

At 6.30 a.m. left the camp and followed the creek down to the
east-north-east till 11.0 a.m.; it then turned more to the northward, and
was nearly lost in wide level flats covered with high grass; the back
country level stringybark forest, with good grass; at 2.25 p.m. the
channel of the creek again collected, and we found a small waterhole
twenty yards long and four feet deep, at which we camped; here we
observe