Published online by Cambridge University Press: 14 September 2016
Page 213 note * R.Ae.S. Journal, “Some Recent Developments in Aircraft Instruments,” January, 1924.
Page 213 note * Nature, May 26th, 1923.
Page 218 note * R.Ae.S. Journal, “Air Navigation,” Major H. E. Wimperis, August, 1919.
Page 220 note * “Aerial Navigation.” Coutinho and Cabral, published in Anais do Club Militar Naval, Lisbon, 1922.
Page 223 note * R.Ae.S. Journal, “Some Recent Developments in Aircraft Instruments,” January, 1924.
Page 224 note * A.R.C. Report. R. & M. 810.
Page 225 note * R.Ae.S. Journal, “Some Recent Developments in Aircraft Instruments,” January, 1924.
Page 228 note * R.Ae.S. Journal, “Sound Reception,” August, 1924.