Section 4. On all pepper exported by sea from the port of Cochin there shall be levied such duty not exceeding

4. On all pepper exported by sea from the port of Cochin there shall be levied such duty not exceeding nine rupees per khandi as the Governor of Fort Saint George in Council from time to time determines; and at the close of each year, or as soon thereafter as may be convenient, the Customs-collector at the said port shall, after deducting the expenses of collection, pay the duty collected under this section to the Governments of Travancore and Cochin in such proportion and in such manner as the Governor of Fort Saint George in Council from time to time directs. Duties on goods crossing frontiers