Estimating the population affected by the trade of Jolo, at 100,000, we note that the importation of cloths and woven materials amounted to P204,431 in 1905 and P196,836 in 1906, or 37 per cent and 42 per cent of total imports, respectively. There is no doubt that the weaving industry among Sulus and Samals is far from being adequate to furnish clothing material, and European cotton cloths are therefore extensively used throughout the Archipelago. The importation of rice amounted to P152,344 in 1905 and P114,832 in 1906, or 27 and 24 per cent of the total imports, respectively. The Sulus are agriculturists and should be able to raise sufficient rice for themselves and the Samals. The islands most fitted for this purpose are Sulu, Basilan, Tapul, Siasi, Pata, and Pandami. The Samals are not agriculturists as a rule and seldom raise anything except tapioca and corn. They generally live on flat, low islands, unfit for the cultivation of rice. The Archipelago as a whole should produce sufficient rice, tapioca, corn, and camotes to feed the whole population. The importation of rice in 1905 was probably in excess of the average amount; less rice was raised that year because of war and general disturbances. The commodities of next importance are yarn and thread for weaving purposes. Importation of these articles amounted to P36,118 in 1905 and P39,188 in 1906, or 7 and 8 per cent, respectively. The country does not produce silk, cotton, or wool. All other imports may be regarded as accessories. Of these opium comes first, then dyes, breadstuffs, sugar, iron, steel, brass, paper, and earthenware. A considerable amount of tobacco is imported by the government free of duty, and quantities of tobacco, opium, and cloths formerly were smuggled in. The reduction of imports in 1906 may be due to increased production, to the depression that followed the disturbances of 1904 and 1905, and to a diversion of certain parts of the trade to Zamboanga. The exports, on the other hand, show a light increase in 1906. They distinctly represent those resources of the country which are most capable of development. At the head of the list stands the shell industry, particularly the pearl shell, which amounted to P189,472 in 1905 and P149,542 in 1906, or 64 and 52 per cent of total exports, respectively. The exportation of shell has lately been greatly affected by the falling of the price of pearl shell in the market of Singapore. The exportation of other shells seems, on the contrary, to have increased. Pearl fishing is the principal industry of the country and forms the main source of its riches. The fishing is done exclusively by natives, but the trade seems to be wholly in the hands of Chinese. The figures given above do not include pearls. It is very difficult to obtain any statistics for this valuable product, but on the whole it is reckoned by merchants as equivalent to the whole output of shell.