While Frank and his chum are thus whirling up the Harrapin River toward the town of Clifford, some miles above, it may pay us to cast just a fleeting glance backward, and see who these lads were, and what aims and ambitions influenced their actions.

The Harrapin boasted of three progressive towns along its banks, each ranging from seven to twenty thousand inhabitants. Columbia was the largest, though Bellport some eight miles further down the river possessed numerous factories, and was a business community.

Each town had its own high school, that of Columbia being especially famous on account of its almost perfect equipment. Between the scholars of the three seats of learning there naturally arose a most persistent rivalry, and from year to year this was carried on in all the sports which up-to-date American boys enjoy.

In the first volume of this series, "Boys of Columbia High; or, The All Around Rivals of the School" will be found many interesting, as well as thrilling, encounters, in which victory was only won after a bitter struggle.

With the coming of balmy Spring the sports of course took on an outdoor flavor, and consequently the second story had to deal with that truly American National sport, baseball, under the title of "The Boys of Columbia High On the Diamond; or Winning Out By Pluck."

The arrival of a new eight-oared shell for the boat club of the school brought both delight and alarm in its train. If you want to experience all the sensation of being present on the beautiful Harrapin on that Glorious Fourth when the wonderful water carnival was celebrated, and read of the astonishing things that happened to the rival students, then read the third volume of the series, which is called "The Boys of Columbia High On the River; or, The Boat Race Plot That Failed."

Vacation over, and with the coming of the two hundred and fifty scholars back to the charge of Professor Tyson Parke and his able assistants, of course the tang of the sharp, early Fall air brought one subject forward. What this was you can readily guess by the title of the fourth book in the series, preceding the present volume: "The Boys of Columbia High On the Gridiron; or The Struggle for the Silver Cup."

Frank Allen was the son of the proprietor of Columbia's great department store. He had one sister, Helen, just a couple of years younger than himself. Lanky Wallace, who had played a prominent part in all the sports through which the school had this year won imperishable renown, was the son of a banker, who was also a lawyer, and meant to follow in his father's footsteps later on.

When the bend above Columbia had been turned, there lay a pretty straight course up to Rattail Island, which was situated about half way between Frank's home town and Clifford. There was not a single skater in sight, as the afternoon had waned, and the lapse of time had caused a gradual retreat to a point nearer home.

"Hurrah!" shouted Lanky, as he guided the spinning craft along over the even surface of the famous little stream; "isn't this the limit? We own the whole river! How does she compare with the clumsy old Hurricane, Frank?"