One simple, but very natural question will now suggest itself. We have seen that, even in channels unfrequented by Europeans, and only partially known to exist, the Chinese were found to be well provided with means of defence, not of recent construction only, but many of them evidently of long standing. But the Chinese government had not been at war with neighbouring nations, nor could they have erected these internal defences against any possible future outbreak of the foreigners who traded with Canton. The latter had usually been very "respectfully obedient;" and, even if they had been disposed at an earlier period to come to blows with the Chinese, their measures would have been directed almost exclusively against the Bogue forts, which protected the main channel of the Canton river, leading to Whampoa. This Inner or Broadway Passage was, at all events, too shallow and intricate to admit of the passage of large ships; and, indeed, we have seen that even the Nemesis had failed in making her way through the upper portion of it. Against whom, then, we may ask, or for what purpose, were the numerous forts erected? The government might have thought proper to occupy the principal strong positions, with a view to strengthen themselves against any outbreak or insubordination of _their own people_; and disturbances of this kind have not been unfrequent, even in despotic and obedient China. But it is far more probable that these defences of their "inner waters" were designed to keep in check the dangerous incursions of pirates, or "Water Braves," who have always infested the coast of China, and have been great enemies to its commerce, and a source of uneasiness to its government. In a country in which so large a portion of the population make their permanent home upon the waters, some upon the innumerable canals and rivers which intersect it in all directions, others along the extensive sea-coast and among its numerous islands, it is not surprising that pirates, or, as the Portuguese call them, Ladrones, should at all times abound.