[ iv ] 
VI. The Phenomena of Rupture and Flow in Solids. By A. A. Griffith, M. Eng. 
(of the Royal Aircraft Establishment). Communicated by G. I. Taylor, 
F.R.S. . page 163 
VII. Reduction of Error by Linear Compounding. By W. F. Sheppard, Sc.JD., 
LL.M. Communicated by E. T. Whittaker. F.R.S .199 
VIII. Tidal Friction in Shallow Seas. By Harold Jeffreys, M.A., D.Sc., 
Fellow of St. Johns College, Cambridge. Communicated by Sir Napier 
Shaw. F.R.S. .. 239 
IX. Plane Stress and Plane Strain in Bipolar Co-ordinates. By G. B. Jeffery, 
M.A ., D.Sc., Fellow of University College, London. Communicated by 
Prof. L. N. G. Filon, F.R.S. .265 
X. The Aerodynamics of a Spinning Shell. By R. H. Fowler, E. G. Gallop, 
C. N. H. Lock and H. W. Richmond, F.R.S .295 
XI. A Selective Hot-Wire Microphone. By W. S. Tucker, D.Sc., A.R.C.Sc., and 
E. T. Paris, AT.Sc. (Lond.). Communicated by Prof. H. L. Callendar, 
F. R.S. . 389 
Index to Volume. 
431 
