There are， however， three or four villages on the coast where schoolmasters from Amboyna reside， and the people are nominally Christians， and are to some extent educated and civilized. Icould not get much real knowledge of the customs of the Aru people during the short time I was among them， but they have evidently been considerably influenced by their long association with Mahometan traders. They often bury their dead， although the national custom is to expose the body an a raised stage till it decomposes. Though there is no limit to the number of wives a man may have， they seldom exceed one or two. A wife is regularly purchased from the parents， the price being a large assortment of articles， always including gongs， crockery， and cloth. They told me that some of the tribes kill the old men and women when they can no longer work， but I saw many very old and decrepid people， who seemed pretty well attended to. No doubt all who have much intercourse with the Bugis and Ceramese traders gradually lose many of their native customs， especially as these people often settle in their villages and marry native women.
The trade carried on at Dobbo is very considerable. This year there were fifteen large praus from Macassar， and perhaps a hundred small boats from Ceram， Goram， and Ke. The Macassar cargoes are worth about ā1，000. each， and the other boats take away perhaps about ā3，000， worth， so that the whole exports may be estimated at ā18，000. per annum. The largest and most bulky items are pearl-shell and tripang， or "beche-de-mer，" with smaller quantities of tortoise-shell， edible birds' nests， pearls， ornamental woods， timber， and Birds of Paradise. These are purchased with a variety of goods. Of arrack， about equal in strength to ordinary West India rum， 3，000 boxes， each containing fifteen half-gallon bottles， are consumed annually. Native cloth from Celebes is much esteemed for its durability， and large quantities are sold， as well as white English calico and American unbleached cottons， common crockery， coarse cutlery， muskets， gunpowder， gongs， small brass cannon， and elephants' tusks. These three last articles constitute the wealth of the Aru people， with which they pay for their wives， or which they hoard up as "real property." Tobacco is in immense demand for chewing， and it must be very strong， or an Aru man will not look at it. Knowing how little these people generally work， the mass of produce obtained annually shows that the islands must be pretty thickly inhabited， especially along the coasts， as nine-tenths of the whole are marine productions.
It was on the 2d of July that we left Aru， followed by all the Macassar praus， fifteen in number， who had agreed to sail in company. We passed south of Banda， and then steered due west， not seeing land for three days， till we sighted some low islands west of Bouton. We had a strong and steady south-east wind day and night， which carried us on at about five knots an hour， where a clipper ship would have made twelve. The sky was continually cloudy， dark， and threatening， with occasional drizzling showers， till we were west of Bouru， when it cleared up and we enjoyed the bright sunny skies of the dry season for the rest of our voyage.
It is about here， therefore that the seasons of the eastern and western regions of the Archipelago are divided. West of this line from June to December is generally fine， and often very dry， the rest of the year being the wet season. East of it the weather is exceedingly uncertain， each island， and each side of an island， having its own peculiarities. The difference seems to consist not so much in the distribution of the rainfall as in that of the clouds and the moistness of the atmosphere. In Aru， for example， when we left， the little streams were all dried up， although the weather was gloomy； while in January， February， and March， when we had the hottest sunshine and the finest days， they were always flowing. The driest time of all the year in Aru occurs in September and October， just as it does in Java and Celebes. The rainy seasons agree， therefore， with those of the western islands， although the weather is very different. The Molucca sea is of a very deep blue colour， quite distinct from the clear light blue of the Atlantic. In cloudy and dull weather it looks absolutely black， and when crested with foam has a stern and angry aspect. The wind continued fair and strong during our whole voyage， and we reached Macassar in perfect safety on the evening of the 11th of July， having made the passage from Aru (more than a thousand miles) in nine and a half days.
My expedition to the Aru Islands had been eminently successful.
Although I had been for months confined to the house by illness， and had lost much time by the want of the means of locomotion， and by missing the right season at the right place， I brought away with me more than nine thousand specimens of natural objects， of about sixteen hundred distinct species. I had made the acquaintance of a strange and little-known race of men； I had become familiar with the traders of the far East； I had revelled in the delights of exploring a new fauna and flora， one of the most remarkable and most beautiful and least-known in the world；and I had succeeded in the main object for which I had undertaken the journey-namely， to obtain fine specimens of the magnificent Birds of Paradise， and to be enabled to observe them in their native forests. By this success I was stimulated to continue my researches in the Moluccas and New Guinea for nearly five years longer， and it is still the portion of my travels to which I look back with the most complete satisfaction.