Head of another river.--Water again scarce.--Abundance found.--Climate and country--under the Tropic Line.--Plants.--Peculiar character of the water-course.--One cause of open spaces in the woods.--New plants.-- Causes of the outspread of channel.--Plains of wild indigo.--Large river channel from the south.--Cross.--Novelties beyond.--The river much increased.--Long journey through scrub.--New plants.--Journey along the river bank.--Character of this river.--Distant prospect.--No water.-- Fatiguing journey through scrubs. Reach the river by moonlight.--Large lagoons.--New tributary--from the S. W.--Excursion to the N. W.--Night without water.--Interview with natives.--Camp visited by natives during my absence.--An affair at the camp.--The party crosses the river.-- Conclusions.--The party returns.--Tilled ground of the natives.--The shepherd astray.--Singular phenomenon.--Extraordinary vegetable production.--Heavy rain comes on.--Probability of finding a river.-- Singular meteor.--Intertropical temperature.--Effects of the rain.-- Recross the Tropic.--Regain the higher land.--Remarkable tree.--(Hakea?)--Dip of the strata.--Character of the Belyando.--How to explore a river in brigalow.--A more direct way homewards.--Successful passage with carts and drays.--Open downs.--Fossil wood.--Recross the Claude.--Mantuan downs.--Natives of the Salvator.--Position taken up for a depot camp.--Interesting plants.--(View on the Salvator, Pl. 8.) CHAPTER VII. (Having reference to Map V., Page 189.) Preparations and departure.--Mount Pluto.--Route amongst the three volcanic hills.--Interview with a female native.--Cross a range beyond.-- The Nive and the Nivelle.--Burning of grass by the natives.--Water found, after a night of thirst.--Pastures green, and quiet waters at sunset.-- Morning view from a rock.--A new river followed down-over extensive open downs.--Brigalow scrubs away from the river.--River much increased.-- Security from natives--Thoughts in these solitudes.--The downs and the river.--An emu shot there.--A river joins from the east.--Structure of native's huts.--Two separate channels unite.--The river well filled.-- Packhorse unserviceable.--Rare pigeon--numerous.--A wild tribe-- surprised at a lagoon.--Recross the river--and return homewards.--The savage compared--with the civilized.--Hills in the S. W.--Short cut along the left bank of the river.--Name it the Victoria.--Privations in exploring.--Return to the Nive and Nivelle.--Gallant charge by a snake.-- Sources of the Salvator.--View from Mount Pluto.--Arrival at the camp of the pyramids.--Rare and new plants collected there.--(View of Lindley's Range, Pl. 9.) CHAPTER VIII. (Having reference to Map V., Page 189., and Map IV., Page 133.)