We passed by the famous guano islands just before nightfall. The air was filled with birds, all of which were flying toward a great island that lifted up its rocky surface above the blue of the sea. At some distance above the sea were the smaller birds, which, at a distance, looked like mere specks against the sky. A little lower were the pelicans flying in single file, and in flocks of from twelve to thirty. They seemed to play the game of “follow the leader,” for if the leader poised his wings or lifted himself higher all did the same. Near the surface were divers, called “pirates” in the local parlance, in flocks of a thousand or more. They sailed along just above the surface of the water and continually altered their formation. With the naked eye the number of birds was myriad, but the telescope showed ten times as many. As far as one could see there was the same multitude of birds, all heading for this one island. The island itself was black with the birds already settled for the night, but each new arrival seemed to find a resting place either on the surface of the rock or in the caves underneath. For countless ages these birds have occupied these sterile volcanic rocks as their resting place, and have deposited the guano which has brought millions of dollars of wealth into the Peruvian treasury. A glimpse of this remarkable bird life shows how the guano has accumulated in such enormous quantities. [Illustration: ROW BOATS CROWDING AROUND A STEAMER.] The northern part of Chile contains the dreariest section of this forlorn coast. There are no harbours, and a tremendous surf which rolls half way around the world before it strikes a breakwater dashes into foam upon these beaches. Several prosperous towns are located here as a result of the workings of nature’s laboratories. To reach these ports it is necessary to trust yourself to one of the boatmen, who crowd around the ladder as soon as the vessel drops anchor. Judicious bargaining is always advisable, and never pay the boatman until he has returned you safely to your floating hotel. The boat is guided through the surf with amazing skill, and it is very seldom that an accident occurs. They sometimes crowd each other off, however, in their eagerness to get the best position at the bottom of the ladder and secure the first passengers. But all these men are good swimmers, and the only result is a good wetting and much amusement for the steamer’s passengers who welcome any diversion.