(d) Foreign mails and telegraphic communication with places outside the United Kingdom.
Revenue.
For the purposes of this Act the public revenue to a portion of which Ireland may claim to be entitled consists of revenue from the following sources:—
1. Suez Canal shares or payments on account thereof.
2. Loans and advances to foreign countries.
3. Annual payments by British possessions.
4. Fees, stamps, and extra receipts received by departments, the expenses of which are part of the Imperial expenditure.
5. Small branches of the hereditary revenues of the Crown.
6. Foreshores.