THE

SURVEYORS' INSTITUTION

(Incorporated by Royal Charter),

12, GREAT GEORGE STREET, WESTMINSTER, S.W.

TRANSACTIONS.

VOL. XLI.

SESSION 1908-1909.

LONDON:

PUBLISHED AT THE INSTITUTION.

12, GREAT GEORGE STREET, WESTMINSTER, S.W.

ENTERED AT STATIONERS' HALL,

All Rights of Translation and Reproduction reserved.

NOTICE.

The Institution does not, as a body, hold itself responsible for statements made or opinions expressed either in the Papers read or the discussions which have occurred at the Meetings.

The Surveyors Institution

(INCORPORATED BY ROYAL CHARTER),
12, GREAT GEORGE STREET,

THOMAS BINNIE (Glasgow)
HOWARD CHATFEILD CLARKE (London)
EDWARD BLAKEWAY I'ANSON (London)
JOHN GERMAN (Ashby-de-la-Zouch)
GEORGE FRANCIS STEWART (Killiney)
FREDERICK GEORGE CHINNOCK(London)
ROBERT NEVILLE HOLBECHE

(Birmingham)

SAMUEL HOOD COWPER COLES

(Crickhowell)

ARTHUR LYON RYDE (London)
HENRY HERBERT SMITH (Chippenham)
JOHN HUBERT OAKLEY (London)
ALFRED MICHELMORE (Totnes)
THOMAS SILK WILSON (Manchester)
JOHN HENRY HANSON (Huddersfield)

Professional Associates of Council.
JOSEPH HENRY SABIN (London)
CHARLES PELL HALL (Woburn)

Associates of Council.

THE RIGHT HONOURABLE LORD ALVERSTONE, G.C.M.G.
(Lord Chief Justice of England)

SIR JOHN WOLFE BARRY, K.C.B.

Past-Presidents Ex-officio Members of Council.

ELIAS PITTS SQUAREY (Salisbury)
DANIEL WATNEY (London)
ROBERT VIGERS (London)
THOMAS MILLER RICKMAN (London)
SIR JOHN F. L. ROLLESTON (London)
ARTHUR VERNON (High Wycombe)

HERBERT THOMAS STEWARD (London)
CHARLES BIDWELL (Ely)
GEORGE LANGRIDGE (Tunbridge Wells)
THOMAS TAYLOR WAINWRIGHT

HOWARD MARTIN (London)

Honorary Secretary.

PERCIVALL CURREY.

Secretary.

ALEXANDER GODDARD.

(Liverpool)