Blackwood's Magazine by Sir Arthur Fanshawe, late Director-General of the Department, and to this article I must acknowledge my obligations for several passages in the book.
I am much indebted to Mr. R. W. Hanson and Mr. F. F. Shout, Assistant Directors-General of the Post Office of India, for their assistance in producing this work. Mr. Hanson is responsible for the chapter on "The Post Office in Mesopotamia and the Persian Gulf," and Mr. Shout for the chapter on "The Sea Post Office" and the paragraphs dealing with the District Post, as well as for the Index.
The chapter upon Indian stamps is based largely upon The Postage and Telegraph Stamps of British India, by Hausburg, Stewart-Wilson and Crofton, published by Messrs. Stanley Gibbons, and I am greatly indebted to Messrs. Stanley Gibbons for the loan of their blocks and for permission to use them in this book.