Note on page 440 * It is remarkable that we were then investing one—fourth of our national income abroad—our foreign and colonial investment represents about a capital of 4,000 millions (E. Crammond, Inst. of Civil Engineers, March 12,1917).

Note on page 440 † This is no place for developing the contrast between bankers– methods at home and abroad,, but for a brief expose of one point of view reference may be made to the “Round Table” of December, 1916. Certain reasons which were, before the war, gradually forcing the German Banks towards the “Deposit Bank” point of view are also there shown. It is something to be the trusted money centre of the world. Nevertheless, the “Industrial Banks” had moved mountains, and we find on May 16, 1917. that a British £10,000,000 “Trade Corporation” has been granted ai Charter for some such Industrial purposes (see recent Parliamentary Papers) and is now under hot discussion in the House of Commons.

Note on page 440 ‡ See “Aircraft Politics in War Time,” p. 203, “Quarterly Review,‚ January, 1917.

Note on page 441 * I except Mr. Lanchester, and also claim to have escaped this one particular error. See Inst. Auto. Engrs., page 291, para. 75, "Problems Relating to Aircraft," by M. O'Gorman.

Note on page 441 ‡ Mr. A. V. Roe, to whom great credit is due for this by no means uninstructive "Record."

Note on page 441 ‡ But for this error we might years ago have got clear of the main aero-carburettor problems of to-day. It fell to the Author to draft those test regulations, and to the Trade Press to condemn them.

Note on page 441 § The basic trouble here was the disregard of the wind tunnels of Eiffel, and the N.P.L Prandtl and Riabouchinski

Note on page 441 ¶ Notably the tractor biplane to which again Mr. A. V. Roe was the B-ritish exponent, and. Breguet the French.

Note on page 441 ** This phase was worse in Fiance than in England, but it was significant even here.

Note on page 443 * It is regretted that the reading of this lecture was followed by the reprinting of a misleading attack, amongst other things, on the work of the Royal Aircraft Factory (in the lt Aeroplane I; of June 20, 1917).

Note on page 449 * I was fortunately instrumental in bringing to this country the first record of such an aerial way in practical use in Italy, and in securing from Major Perfetti the Italian maps which our recent lecturer, Mr. Holt Thomas, used as a striking illustration of his lecture. Aerial ways from Turin to Milan, to Udine, and from Milan to Rome, down both sides of the coast form part of the scheme. Recently we learn that the Central Powers are starting a £2,000,000 scheme—Berlin, Constantinople and the East.

Note on page 449 * M. O'Gorman. The Aeronautical Journal, pp. 27-28-29 in discussion before the A.S. of Mr. Wallacespapcr on "The Right to Fly."

Note on page 454 * Horace Darwin, F.R.S., Aeronautical Journal.

Note on page 454 † Alec. W. G. Randall, p. 750, Contemporary Review, June, 1917