OFFICERS OF SECTIONS, 1931. ix 
THE Lonpon ComMMITTEE—continued. 
Tue Principat oF WESTFIELD COLLEGE, Dr. Eleanor Lodge. 
Tue Provost or Universiry Couiece, Dr. Allen Mawer. 
Tue RecTor OF THE IMPERIAL COLLEGE OF SCIENCE AND TEecHNOLOGY, H. T. Tizard, 
C.B., F.R.S. 
Sir ArtrHuR BAtrour, K.B.E. A. R. Hinks, C.B.E., F.R.S. 
Prof. V. H. Buacxman, F.R.S. Sir E. G. Grauam Litt.ez, M.P. 
Sir W. H. Davison, K.B.E., M.P. Sir Henry Lyons, F.R.S. 
Prof. F. G. Donnan, C.B.E., F.R.S. Sir G. A. K. MarsHatt, C.M.G., F.R.S. 
E. C. GRENFELL, M.P. Sir P. CHAtmMERs MircHELi, C.B.E., 
Col. Sir W. WEston Jarvis, C.M.G. F.R.S. 
Sir Wituram Larxt, K.B.E. Prof. G. T. Morcan, O.B.E., F.R.S. 
Sir Davip MILNE-WATSsON. Prof. Karu Pearson, F.R.S. 
Dr. F. A. Batuer, F.R.S. Sir JosepH Peravet, K.B.E., F.R.S. 
Prof. W. E. DALBy, F.R.S. A. T. Piz, J.P. 
Dr. H. H. Date, C.B.E., Sec. R.S. Prof. A. O. RANKINE. 
Prof. C. Lovarr Evans, F.R.S. Sir Joun Reiru. 
Sir WALTER FLETCHER, K.B.E., F.R.S. | Dr. A. B. RENpDLE, F.R.S. 
Sir Joun Fett, F.R.S. Sir Ropert Rospertson, K.B.E., F.R.S. 
Prof. Georce Forses, F.R.S. The Rt. Hon. Lorp Roruscuitp, F.R.S 
Prof. A. Fow er, F.R.S. Sir Napier Suaw, F.R.S. 
Sir RicHArD GLAZEBROOK, F.R.S. Dr. F. C. SHRUBSALL. 
Sir Ricuarp Grecory, Bt. Dr. G. C. Smpson, C.B., C.B.E., 
E. C. GRENFELL, M.P. F.R.S. 
Prof. Dame HELEN GwyYyNNE-VAUGHAN. | Sir WILLIAM Simpson, C.M.G. 
Sir Danret Hatt, K.C.B., F.R.S. Prof. G. Ertior Smiru, F.R.S. 
Sir Sipney Harmer, K.B.E., F.R.S. Prof. A. SmrrHetys, C.M.G., F.R.S. 
Dr. H. S. Heie-Suaw, F.R.S. Prof. J. F. THorpr, C.B.E., F.R.S. 
Sir JAMEs HENDERSON. 
LOCAL HON. SECRETARIES FOR THE YORK MEETING. 
Dr. W. E. Coiiince, Keeper of the Yorkshire Museum. 
P. J. Spatpinc, Town Clerk of York. 
LOCAL HON. TREASURER FOR THE YORK MEETING. 
Sir Witrriw THomson, Bart., J.P. 
SECTIONAL OFFICERS. 
A.—MATHEMATICAL AND PHYSICAL SCIENCES. 
President.—Sir J. J. THomson, O.M., F.R.S. 
Vice-Presidents—Sir F. W. Dyson, K.B.E., F.R.S.; Prof. A. R. Forsyru, F.RS.; 
Prof. A. Fow er, F.R.S.; Prof. G. H. Harpy, F.R.S.; Sir F. E. Smiru, 
K.C.B., C.B.E., Sec. R.S. 
Recorder —Dr. ALLAN FERGUSON. 
Secretaries —Capt. F. Enrwistte ; W.M.H. Greaves ; Dr. Ezer Grirrirus, F.R.S. ; 
Prof. E. H. NEvitie. 
Local Secretary.—Prof. A. O. RANxiNE, O.B.E. 
B.—CHEMISTRY. 
President.—Brig.-Gen. Sir Harotp Hart ey, C.B.E., F.R.S. 
Vice-Presidents—Dr. W. H. Mixts, F.R.S.; Prof. G. T. Morean, O.B.E., F.R.S. ; 
eo Ropsinson, F.R.S.; H. T. Tizarp, C.B., F.R.S.; Dr. M. W. TRAvVERs, 
-RS. 
Recorder.—Prof. C. S. Grsson, O.B.E., F.R.S. 
Secretaries.—Prof. T. S. Moore ; Prof. F. J. Witson. 
Local Secretaries —A. A. Etpriwcr ; J. Davipson Pratt, O.B.E. 
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