The swimming invention was pretty thoroughly discussed by the boys, one and another suggesting improvements, Benjamin evidently satisfied that swimming at less speed in the usual way was preferable to these artificial paddles and increased rapidity. But their interest was awakened anew when Benjamin informed them that he had another invention that he proposed to try at a future day. "What is it?" inquired two or three at the same time. "You shall see; it is more simple than this apparatus," replied Benjamin. "It will not be so tiresome to use." "When will you let us see it on trial?" asked John Collins, who, perhaps, appreciated Benjamin's spirit and talents more than any of the boys. "Any time you will all agree to be here. You will not know what it is until you see it." The time was appointed for the trial of the unknown device, and the boys separated with their curiosity on tiptoe as to the nature of the other improved method of swimming. They had no idea that it was a humbug, for "Ben" never practised sham. He was so much of a genius that, no doubt, he had something that would surprise them. John Collins was more like Benjamin than other boys in Boston, and he was his most intimate companion. John was talented, and a great reader. He had a craving thirst for knowledge, and used his leisure moments to improve his mind. He frequently discussed profitable subjects with Benjamin, who enjoyed his company very much for this reason. In their tastes, love of books, and high aims, they were suited to each other. Benjamin thought as highly of John as John did of Benjamin. When the time for trying the other device arrived, Benjamin appeared on the scene with a new kite. "A kite!" exclaimed John Collins, in surprise. "I see it now. That _is_ simple." He saw at once that Benjamin was going to make a sail of his kite, and cross the pond. "'T will hinder more than it will help, I think," remarked one of the boys. "We shall know whether it will or not, very soon," responded another. "Ben isn't hindered very often." While this parleying was going on, Benjamin was disrobing and getting ready for the trial. "Fred, you carry my clothes around to the other side of the pond, and I will swim across," said Benjamin, as he sent his kite up into the air. "All right," answered Fred; "I will do it to the best of my ability; and I will be there to see you land." So saying he caught up the clothes and started off upon the run. The kite was high up in the air, when, holding the string with both hands, Benjamin dropped into the water upon his back, and at once began to skim the surface. Without an effort on his part, not so much as the moving of a muscle, the sailing kite pulled him along faster than his arms and feet could have done in the old way of swimming.