The evidences of a large population along the Yang-tse were easy to see; but, nevertheless, Frank and Fred were somewhat disappointed. They had read of the overcrowded condition of China, and they saw the great numbers of boats that navigated the river, and consequently they looked for a proportionately dense mass of people on shore. Sometimes, for two or three hours at a time, not a house could be seen; and at others the villages were strung along in a straggling sort of way, as though they were thinly inhabited, and wished to make as good a show as possible. There were many places where the land did not seem to be under cultivation at all, as it was covered with a dense growth of reeds and rushes. In some localities the country appeared so much like a wilderness that the boys half expected to see wild beasts running about undisturbed; they began to speculate as to the kind of beasts that were to be found there, and finally questioned Dr. Bronson on the subject. The Doctor explained to them that this desolation was more apparent than real, and that if they should make a journey on shore, at almost any point, for a few miles back from the river, they would find all the people they wanted. "About thirty years ago," said he, "they had a rebellion in China; it lasted for a long time, and caused an immense destruction of life and property. The rebels had possession of the cities along the Yang-tse, and at one period it looked as though they would succeed in destroying the government." "Did they destroy the cities that we see in ruins?" Fred asked. "Yes," answered the Doctor, "they destroyed several cities so completely that not a hundred inhabitants remained, where formerly there had been many thousands; and other cities were so greatly injured that the traces of the rebel occupation have not been removed. I believe there is not a city that escaped uninjured, and you have seen for yourselves how some of them have suffered. "The rebellion," he continued, "is known in history as the Tae-ping insurrection. The words 'tae ping' mean 'general peace,' and were inscribed on the banners of the rebels. The avowed intention of the leader of the revolt was to overthrow the imperial power, and deliver the country from its oppressors. There were promises of a division of property, or, at all events, the rebels were to have free license to plunder wherever they went; and as there are always a great many people who have everything to gain and nothing to lose, the rebellion gathered strength as time went on. The leaders managed to convince the foreigners that they were inclined to look favorably on Christianity, and the idea went abroad that the Tae-pings were a sort of Chinese Protestants, who wanted to do away with old abuses, and were in favor of progress and of more intimate relations with foreign nations. Many of the missionaries in China were friendly to the rebellion, and so were some of the merchants and others established there.