In more tropical climes the difference is still greater; thus, the rise of the Nile is sometimes not less than thirty-eight feet, that of the Euphrates twelve feet, that of the Tigris twenty feet; whilst in India the large rivers are also increased or diminished in a considerable degree during the dry and wet seasons. The English reader, therefore, the writer would again repeat, should not be surprised at hearing of the easy navigability of the greatest Australian river, or wonder that other works have stated the stream of the Murray as quite insignificant and ill adapted for steamers. The voyage of the _Lady Augusta_ steamer has proved the fact of the navigation being open for at least six months during a very dry season, and no doubt can exist that in ordinary years the River Murray may be used by steamers for at least seven months. A system of embankments and occasional canals at a more distant day, when labour shall become abundant, will probably lay open the course of the river for a still longer period, although the present navigability has been deemed sufficient for all immediate purposes of traffic. The first Navigators by Steam of the River Murray; or, a List of the Passengers, Officers, and Crew of the “Lady Augusta” Steamer and the “Eureka” Barge. Passengers. His Excellency Sir H. E. F. Young, Lieutenant-Governor of South Australia. J. Grainger, Esq., M.L.C. Wm. Younghusband, Esq., M.L.C, and Agent for the Murray Steamers. R. Davenport, Esq., M.L.C. A. Kinloch, Esq., Clerk Executive Council. Geo. Palmer, Esq., Indian Civil Service. Geo. Mason, Esq., Sub-Protector of Aborigines. E. W. Andrews, Esq., _South Australian Register_. Travers Finnis, Esq. James Allen, Esq. Regd. Bright, Esq., (left the party at Swan Hill). H. Jamieson, Esq., of Mildura (joined the party on the river, at his own station). Mrs. Finniss. Mrs. Younghusband. Mrs. Irvine. Miss Sarah Younghusband. Miss Eliza Younghusband. Miss Louisa Younghusband. Isabella Williamson. Officers and Crew of the “Lady Augusta” and the “Eureka” Barge. Commander, Francis Cadell.