1. BruntPhysical and Dynamical Meteorology, Camb. Univ. Press, 1934.
2. Douglas, CaptainDictionary of Applied Physics, 1923,111, 41.
3. JacksonProc. Roy. Soc., 1902,A 70, 266.
4. MackyIbid., 1933,A 133, 565.
5. MarchandRev. Gen. Sc., Paris, 1921,32, 594.