WE find Columbus sailing into one of its harbours after his second trip across the great Atlantic Ocean. The trees and plants look very beautiful to him. But he notices other things; he sees rivers flowing down into the sea, and the natives tell him of stores of gold to be found in the beds of these streams. For this reason he calls it "Puerto Rico," or the "Rich Port," and so it has been called to this day. He and his men are full of interest in the strange sights around them. In the waters about Porto Rico are wonderful creatures they have never seen before. Among these is the manatee, which, rising up out of the water, looks at a distance somewhat like a human being. "It is a mermaid," cries Columbus, "but, alas! it is not as beautiful as I expected." He wrote of it in this way in the account of his voyage. In those days of long ago people had many queer ideas. One of these notions was that beings lived in the sea who had heads and arms like men and women, but the lower parts of their bodies were shaped like fishes. They were, therefore, half human and half fish. Their home was far down in cool groves at the bottom of the sea. A diver once said he had visited the very place. He found the water perfectly clear, and lighted up by crystal pyramids. There were gardens of beautiful sea-weeds, furniture all made of precious stones, and the strange beings dwelling there wore ornaments and combs of shining gold. They believed that these beings of the sea rose sometimes to the surface of the water. There they would sing sweet songs as they combed their long yellow hair. But they sang only to make the sailors forget their own homes and to lead them into harm. It was no wonder that Columbus was disappointed when he discovered the manatee, and believed he had at last seen the mermaids of whom he had read so many stories. The sea-cow is certainly not a beautiful creature. It looks somewhat like a small whale; it has a fat body, with small eyes and ears. It is very timid, and probably swam off as fast as it could when it found the vessels of Columbus near. Of course, the great sailor did not get a good view of it or he could not have believed it to be the mermaid described in song and story. Not many years after Columbus discovered Porto Rico, Ponce de Leon led a company of Spaniards to its shores and settled there. The Indian chief of the country was very kind to the strangers. He gave them provisions and rich presents, and showed them the fruits and vegetables which grew there. He shared his treasures with them, and, most important of all, he led them to a river where stores of gold could be found in its bed. Gold! It filled the Spaniards' hearts with greed. This was what they had longed for; now they could go back to their own country with great fortunes. How did they return the kindness of the gentle, trusting natives? By treating them like slaves! By making them do the hardest labour, and then rewarding them with cruelties.