GENERAL TREASURER.

E. H. GRIFFITHS, Sc.D., D.Sc., LL.D., F.R.S.

GENERAL SECRETARIES.

Professor J. L. MYRES, O.B.E., M.A., F. E. SMITH, C.B.E., F.R.S.
D.Sc., F.S.A., F.B.A.

SECRETARY.

O. J. R. HOWARTH, O.B.E., M.A., Burlington House, London, W. 1. LOCAL SECRETARIES FOR THE SOUTHAMPTON MEETING. R. C. ANDERSON, F.S.A.; Prof. W. R. SHERRIFFS, D.Sc.; F. WOOLLEY. LOCAL TREASURER FOR THE SOUTHAMPTON MEETING. J. REYNOLDS HOLE.

ORDINARY MEMBERS OF THE COUNCIL.

Prof. W. H. ASHWORTH, F.R.S.

Dr. F. W. ASTON, F.R.S.
J. BARCROFT, F.R.S.

Principal E. BARKER.

Sir W. H. BEVERIDGE, K.C.B., F.R.S.
Rt. Hon. LORD BLEDISLOE, K.B.E.
Prof. E. G. COKER, F.R.S.
Professor W. DALBY, F.R.S.
Professor C. H. DESCH, F.R.S.
E. N. FALLAIZE.

Dr. J. S. FLETT, O.B.E., F.R.S.
Professor H. J. FLEURE.
Professor A. FOWLER, F.R.S.

Sir DANIEL HALL, K.C.B., F.R.S.
C. T. HEYCOCK, F.R.S.

Sir T. H. HOLLAND, K.C.M.G., F.R.S.
Sir J. SCOTT KELTIE.

Professor A. W. KIRKALDY.

Dr. P. CHALMERS MITCHELL, C.B.E.,
F.R.S.

Dr. C. S. MYERS, F.R.S.

Professor A. W. PORTER, F.R.S.
Professor A. C. SEWARD, F.R.S.
Dr. F. C. SHRUBSALL.

Prof. A. SMITHELLS, C. M.G., F.R.S.
A. G. TANSLEY, F.R.S.

EX-OFFICIO MEMBERS OF THE COUNCIL.

The Trustees, past Presidents of the Association, the President for the year, the President and Vice-Presidents for the ensuing Annual Meeting, past and present General Treasurers and General Secretaries, past Assistant General Secretaries, and the Local Treasurers and Local Secretaries for the Annual Meetings immediately past and ensuing.

TRUSTEES (PERMANENT).

Major P. A. MACMAHON, D.Sc., Sir ARTHUR EVANS, M.A., LL.D.,
LL.D., F.R.S.
F.R.S., F.S.A.

Hon. Sir CHARLES A. PARSONS, K. C.B., LL.D., D.Sc., F.R.S.

PAST PRESIDENTS OF THE ASSOCIATION.

Rt. Hon. the Earl of BALFOUR, O.M.,
F.R.S.

Sir E. RAY LANKESTER, K.C.B., F.R.S.
Sir FRANCIS DARWIN, F.R.S.

Sir J. J. THOMPSON, O.M., F.R.S.
Sir E. SHARPEY SCHAFER, F.R.S.

Sir OLIVER LODGE, F.R.S.

Professor W. BATESON, F.R.S.

Sir ARTHUR SCHUSTER, F.R.S.

Sir ARTHUR EVANS, F.R.S.

Hon. Sir C. A. PARSONS, K.C.B.,
F.R.S.

Sir T. EDWARD THORPE, C.B., F.R.S.
Prof. Sir C. S. SHERRINGTON, G.B.E.,
Pres.R.S.

LOCAL OFFICERS.

CHAIRMAN OF EXECUTIVE COMMITTEE FOR THE TORONTO

MEETING.

Professor J. C. MCLENNAN, F.R.S.

(in whose absence Prof. H. WASTENEYS was Acting Chairman).

LOCAL HON, SECRETARIES FOR THE TORONTO MEETING.
Professor J. C. FIELDS, F.R.S.
Professor J. J. R. MACLEOD, M.B., Ch.B., D.P.H.

ASSISTANT LOCAL SECRETARY.
Major J. M. MOOD, O.B.E., M.C.

LOCAL HON. TREASURER FOR THE TORONTO MEETING
F. A. MOURÉ, Mus. Doc.

ASSOCIATE COMMITTEES IN TORONTO.

The following were Chairmen of Associate Committees for arrangements in Toronto:

DISTRICT COMMITTEES IN CANADA.

DISTRICT COMMITTEES were formed to collaborate with the Executive in Toronto in making local arrangements in connection with the Meeting. The Chairmen of these Committees were as follows:

Pres. A. STANLEY MACKENZIE, Ph.D., D.C.L., Dalhousie
University.

Hon. CYRILle Delage.

Principal Sir ARTHUR CURRIE, G.C.M.G., K. C. B., LL.D., McGill
University.

Dr. W. H. COLLINS, Director, Canadian Geological Survey.
Prof. A. L. CLARK, Ph.D., Queen's University.

Pres. J. B. REYNOLDS, M.A., Ontario Agricultural College.
W. S. Fox, Ph.D., Dean of the Faculty of Arts, Western
University.

William F. H. KEEFER, M.P.P.

Prof. C. H. O'DONOGHUE, University of Manitoba.

Hon. Sir FREDERICK HAULTAIN, Chief Justice of Saskatchewan.
Pres. WALTER C. MURRAY, LL.D., University of Saskatchewan.
Pres. HENRY MARSHALL TORY, D.Sc., LL.D., University of
Alberta.

Dr. J. M. SCOTT.

Pres. L. S. KLINCK, D.Sc., University of British Columbia.
Prof. P. H. ELLIOTT, M.Sc., Victoria College.

viii

SECTIONS & SECTIONAL OFFICERS, 1924.

A.-MATHEMATICS AND PHYSICS.

President.-Sir WILLIAM BRAGG, K.B.E., F.R.S.

Vice-Presidents.-Prof. A. S. EVE, C.B.E., F.R.S.; Prof. J. C. FIELDS, F.R.S.; Prof. J. C. MCLENNAN, O.B.E., F.R.S.; Prof. J. S. PLASKETT, F.R.S.; Sir F. STUPART.

Recorder.-Prof. A. O. RANKINE.

Secretaries.-M. A. GIBLETT, Prof. H. R. HASSÉ, J. JACKSON, Prof. A. M. TYNDALL.

B.-CHEMISTRY.

President. Sir ROBERT ROBERTSON, K.B.E., F.R.S.

Vice-Presidents.-Prof. F. G. DONNAN, C.B.E., F.R.S.; Prof. LASH MILLER;
Dr. N. V. SIDGWICK, O.B.E., F.R.S.
Recorder.-Prof. C. H. DESCH, F.R.S.
Secretary. -Dr. E. K. RIDEAL.

C.-GEOLOGY.

President.-Prof. W. W. WATTS, F.R.S.
Vice-Presidents.-Prof. C. CAMSALL; Prof. A. P. COLEMAN, F.R.S.; W. H.
COLLINS; Dr. GERTRUDE ELLES; Sir T. H. HOLLAND, K.C.S.I., F.R.S.;
J. McLEISH; Dr. W. G. MILLER; Prof. W. A. PARKS; J. B. TYRRELL;
Prof. T. L. WALKER; Dr. DAVID WHITE; the Deputy Ministers, Depts. of
Mines, Canada and Ontario; the Presidents of the Geological Section,
Royal Society of Canada, and of the Canadian Institute of Mining and
Metallurgy.

Recorder.-Prof. W. T. GORDON.
Secretary.-Prof. G. HICKLING.

D.-ZOOLOGY.

President.-Prof. F. W. GAMBLE, F.R.S.

Vice-Presidents.-Prof. J. H. ASHWORTH, F.R.S.; Prof. B. A. BENSLEY; Prof..
A. G. HUNTSMAN; Prof. A. WILLEY.
Recorder.-F. BALFOUR BROWNE.

Secretary.-Prof. W. J. DAKIN.

E. GEOGRAPHY.

President.-Prof. J. W. GREGORY, F.R.S.

Vice-Presidents.-Dr. H. M. AMI; Dr. VAUGHAN CORNISH; Dr. E. G. Deville; Dr. MARION I. NEWBIGIN; JAMES WHITE.

Recorder.-Dr. R. N. RUDMOSE BROWN.

Secretaries.-W. H. BARKER, J. BARTHOLOMEW.

F.-ECONOMIC SCIENCE AND STATISTICS.

President.-Sir WILLIAM ASHLEY.

Vice-Presidents.-Sir JOHN AIRD; Sir WILLIAM BEVERIDGE, K.C.B.; Prof. EDWIN CANNAN; Prof. R. M. MACI VER; Prof. JAMES MAVOR; J. STAPLES. Recorder.-Prof. H. M. HALLSWORTH.

Secretary.-R. B. FORRESTER.

G.-ENGINEERING.

President.-Prof. G. W. O. HOWE.

Vice-Presidents.-Sir HENRY FOWLER, K.B.E.; Dean C. H. MITCHELL.

Recorder.-Prof. F. C. LEA.

Secretaries.-Prof. A. ROBERTSON, J. S. WILSON.

H.-ANTHROPOLOGY.

President.-Dr. F. C. SHRUBSALL.

Vice-Presidents.-H. BALFOUR, F.R.S.; Dr. A. C. HADDON, F.R.S.; Dr. ALIŠ HRDLICKA; Prof. J. P. McMURRICH; Sir BERTRAM WINDLE, F.R.S. Recorder.-E. N. FALLAIZE.

Secretaries.-Miss R. M. FLEMING, Dr. A. Low.

I.-PHYSIOLOGY.

President.--Dr. H. H. DALE, C.B.E., F.R.S.

Vice-Presidents.-Prof. J. J. R. MACLEOD, F.R.S.; Prof. G. H. F. NUTTALL,

F.R.S.

Recorder.-Prof. C. LoVATT EVANS.

Secretaries.-Dr. J. H. BURN, Prof. E. P. CATHCART, C.B.E., F.R.S.

J.-PSYCHOLOGY.

President.-Prof. W. MCDOUGALL, F.R.S.

Vice-Presidents.-Prof. E. A. BOTT; Prof. G. S. BRETT; Dr. C. BURT; Prof. CATTELL; Dr. C. S. MYERS.

Recorder.-Dr. LL. WYNN JONES.

Secretaries.-R. J. BARTLETT, Dr. SHEPHERD Dawson.

K.-BOTANY.

President.-Prof. V. H. BLACKMAN, F.R.S.

Vice-Presidents.-Prof. H. H. DIXON; Prof. J. H. FAULL; Prof. R. RUGGLES GATES; Dr. C. D. HowE; Prof. F. J. LEWIS; Prof. F. E. LLOYD; Prof. J. H. PRIESTLEY; Dr. A. B. Rendle, F.R.S.; Miss E. R. SAUNDERS. Recorder.-Prof. J. McLEAN THOMPSON.

Secretary.-Dr. W. ROBINSON.

L.-EDUCATIONAL SCIENCE.

President.-Principal ERNEST BARKER.

Vice-Presidents.-Sir ROBERT FALCONER, K.C.M.G.; Dean W. PAKENHAM.
Recorder.-C. E. BROWNE.

Secretary.-Dr. LILIAN CLARKE.

M.-AGRICULTURE.

President.-Sir JOHN RUSSELL, F.R.S.

Vice-Presidents.-Dr. C. CROWTHER; Dr. F. C. HARRISON; Hon. J. S. MARTIN;