by
A. D. SMITH, B.Sc. (Econ.)
of the secretary's office,
general post office, london
with an introduction by
THE RIGHT HON. HERBERT SAMUEL, M.P.
Postmaster-General 1910-14 and 1915-16
LONDON: GEORGE ALLEN & UNWIN LTD.
RUSKIN HOUSE 40 MUSEUM STREET, W.C. 1
[Thesis approved for the Degree of Doctor of Science (Economics) in the University of London]
First published in 1917