Elphinstone Dalrymple, with Messrs Hill and Johnstone, finishing in December 1873, effected a valuable survey of the inlets and navigable rivers in the Cape York Peninsula.
Johnstone, Conditions of Life in the Sea (1908); Murray and Hjort, Depths of the Ocean (1912); J.
Johnstone (Liverpool, 1901); and W.
In the same year his coolness and courage in a duel with Captain George Johnstone, M.P., assisted to rehabilitate him, and in 1775, having meantime taken an active part in politics, he became secretary of state for the colonies in the North cabinet.
Some corroboration of the simple law was apparently found by Johnstone Stoney, who first noted that the frequencies of three out of the four visible hydrogen lines are in the ratios 20: 27: 32.