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It is difficult for an Englishman to avoid contemplating with pride our gigantic and ever-increasing manufactures and commerce, and thinking everything good that renders their progress still more rapid, either by lowering the price at which the articles can be produced, or by discovering new markets to which they may be sent. If, however, the question that is so frequently asked of the votaries of the less popular sciences were put here--"Cui bono?"--it would be found more difficult to answer than had been imagined. The advantages, even to the few who reap them, would be seen to be mostly physical, while the wide-spread moral and intellectual evils resulting from unceasing labour, low wages, crowded dwellings, and monotonous occupations, to perhaps as large a number as those who gain any real advantage, might be held to show a balance of evil so great, as to lead the greatest admirers of our manufactures and commerce to doubt the advisability of their further development. It will be said: "We cannot stop it; capital must be employed; our population must be kept at work; if we hesitate a moment, other nations now hard pressing us will get ahead, and national ruin will follow." Some of this is true, some fallacious. It is undoubtedly a difficult problem which we have to solve; and I am inclined to think it is this difficulty that makes men conclude that what seems a necessary and unalterable state of things must be good-that its benefits must he greater than its evils. This was the feeling of the American advocates of slavery; they could not see an easy, comfortable way out of it. In our own case, however, it is to be hoped, that if a fair consideration of the matter in all its hearings shows that a preponderance of evil arises from the immensity of our manufactures and commerce-evil which must go on increasing with their increase-there is enough both of political wisdom and true philanthropy in Englishmen, to induce them to turn their superabundant wealth into other channels. The fact that has led to these remarks is surely a striking one: that in one of the most remote corners of the earth savages can buy clothing cheaper than the people of the country where it is made;that the weaver's child should shiver in the wintry wind, unable to purchase articles attainable by the wild natives of a tropical climate, where clothing is mere ornament or luxury, should make us pause ere we regard with unmixed admiration the system which has led to such a result, and cause us to look with some suspicion on the further extension of that system. It must be remembered too that our commerce is not a purely natural growth.

It has been ever fostered by the legislature, and forced to an unnatural luxuriance by the protection of our fleets and armies.

The wisdom and the justice of this policy have been already doubted. So soon, therefore, as it is seen that the further extension of our manufactures and commerce would be an evil, the remedy is not far to seek.

After six weeks' confinement to the house I was at length well, and could resume my daily walks in the forest. I did not, however, find it so productive as when I had first arrived at Dobbo. There was a damp stagnation about the paths, and insects were very scarce. In some of my best collecting places I now found a mass of rotting wood, mingled with young shoots, and overgrown with climbers, yet I always managed to add something daily to my extensive collections. I one day met with a curious example of failure of instinct, which, by showing it to be fallible, renders it very doubtful whether it is anything more than hereditary habit, dependent on delicate modifications of sensation. Some sailors cut down a good-sized tree, and, as is always my practice, I visited it daily for some time in search of insects. Among other beetles came swarms of the little cylindrical woodborers (Platypus, Tesserocerus, &c.), and commenced making holes in the bark. After a day or two I was surprised to find hundreds of them sticking in the holes they had bored, and on examination discovered that the milky sap of the tree was of the nature of gutta-percha, hardening rapidly on exposure to the air, and glueing the little animals in self-dug graves. The habit of boring holes in trees in which to deposit their eggs, was not accompanied by a sufficient instinctive knowledge of which trees were suitable, and which destructive to them. If, as is very probable, these trees have an attractive odour to certain species of borers, it might very likely lead to their becoming extinct; while other species, to whom the same odour was disagreeable, and who therefore avoided the dangerous trees, would survive, and would be credited by us with an instinct, whereas they would really be guided by a simple sensation.

Those curious little beetles, the Brenthidae, were very abundant in Aru. The females have a pointed rostrum, with which they bore deep holes in the bark of dead trees, often burying the rostrum up to the eyes, and in these holes deposit their eggs. The males are larger, and have the rostrum dilated at the end, and sometimes terminating in a good-sized pair of jaws. I once saw two males fighting together; each had a fore-leg laid across the neck of the other, and the rostrum bent quite in an attitude of defiance, and looking most ridiculous. Another time, two were fighting for a female, who stood close by busy at her boring.