The closeness with which the native traders conceal their commercial transactions, even from each other, rendered it impossible for me to learn the amount of exports and imports.  Each Bughis proa imports to the amount of from 10,000 to 30,000 dollars, and at least one half of her cargo consists of British goods.  Taking the yearly average of thirty proas, and the amount of her import cargo at the lowest above stated, this will give 150,000 dollars, or 32,500 pounds sterling, as the amount of British goods imported annually into Dobbo.  This appears a large amount; but it will be found, upon examination, that it is rather under than above the actual value.  In fact, the greater portion of our cotton manufactures sold at Singapore is consumed in the less civilized parts of the Indian Archipelago, where the natives prefer cheap goods and gaudy patterns; while the people of Java, Celebes, etc. prefer their own or Indian manufactures, which, although dearer, are far more durable than ours.

The value of a return cargo of a Bughis proa at Singapore is about 200 per cent on the outlay.  Of the timber of the Arrou Islands there are several varieties, highly spoken of by the Bughis (who build and repair their proas there) for their durability, and the ease with which they are worked.  Although of immense size, the trees are almost invariably sound; and as they can be felled within a few yards of the beach, it is not impossible that at some future period timber may form a valuable article of export.

The western islands of this group are very thinly inhabited.  Wamma, though nearly forty miles in circumference, contains only between 200 and 300 inhabitants, who are scattered along the coast in little villages, each containing about half a dozen houses.  The eastern islands are said to be more thickly inhabited.  The natives appear to be a harmless race; and though their country is so rich in produce, the greater portion are in a state of poverty.  This is to be attributed to the immoderate use of spirituous liquors, large quantities of which are brought by the traders from Java and Macassar.  From their language and personal appearance, the natives appear to be a mixture between the Malayan race and the Polynesian negro.

PRODUCTIONS OF THE ISLANDS.

We also learnt that the emu and a small species of the kangaroo are found in the islands.  From the varieties of birds, insects, butterflies, and parasitical plants, etc. that we saw, these islands promise a rich field to the naturalist and botanist.

We were shown some of the pearls that had been collected, some of which were very large, and highly prized by the Chinese; though from their irregular form and golden hue, they would not suit the European market.  The smaller pearls, about the size of Number 1 shot, were very perfect in figure but tinged with colour.