With a view to deriving a revenue from these well-equipped vessels, the government of Burma in 1898 divided the 11,000 square miles of pearling territory into five definite areas known as “blocks.” The area within each of these blocks was surveyed, marked, and charted; and the financial commissioner from time to time determined as to each block whether licenses for pearl fishing should be issued, or whether the exclusive right therein should be leased. These leases were disposed of either by inviting tenders and granting the lease to any of the persons who might tender, or by public auction, as the financial commissioner might direct. By the terms of the lease, the lessee was obliged to register at the office of the deputy commissioner of finance the number of boats and pumps employed by him; to declare by letter, at the end of each month, the number, weight, and estimated value of all mother-of-pearl shell and pearls collected during the month, and to refrain from taking any mother-of-pearl measuring less than six inches from lip to hinge. Outside the limits of blocks in which the exclusive pearl fishing was leased, licenses to use diving implements were granted in such number and on payment of such fees, not exceeding Rs.1000 per apparatus, as might from time to time be fixed, every such license expiring on June 30 next following the date on which it was granted, and no license was transferable. The five blocks in which the Mergui pearling rights were leased are of large area, averaging somewhat over 2000 square miles each. The lessees customarily granted permits to subsidiary fishermen to operate in their respective blocks, on payment of a royalty, this ranging in amount from 12½ to 25 per cent. of the mother-of-pearl secured, and the pearls found were the absolute property of the fishermen. Until 1900 the pearling rights were leased by blocks as above noted. Rights to catch trochus, green snail shells, and sea-slugs, were included in the lease. It was noticed that European pearlers always sublet the trochus and green snail rights, and it was decided to auction these separately; while as regards pearling proper the auction system was abolished in that year in favor of a system of licensing individual vessels for a fee of Rs.400 each. The right to collect pearls by nude diving was thought for some time to have been left free; but subsequently it was auctioned along with the rights to collect green snails, trochus and sea-slugs. The following summary, compiled from data furnished by Mr. I. H. Burkill of the Indian Civil Service, shows the extent of the pearl and shell fisheries of Mergui for a series of years. Year. No. of Revenue from Revenue from Reported Value of Pumps. Pumps. Auction Rights. Yield. Rs. Rs. Rs. 1904 70 28,000 22,500 149,239