H. Gibson, Hydro-Electric Engineering, vol. 96, p. 317 (1913); Engineer, vol. 138, p. 552 (1924); vol. 76, p. 163 (1925). 6 F. Paschen and W. L. E. Napier and E. Poisson) and cight battle cruisers, three armoured cruisers “ Thetis” (Comm. R. S. Patterson, Director-General of Accounts, and Brig. Gen. Sir H. Chauvel, an