With the arrival of three Pennsylvania crews this morning, the invasion of visiting oarsmen in preparation for the Harvard-Cornell-Pennsylvania-M. I. T. races Saturday will begin. This will be the biggest regatta ever held on the Charles, and will undoubtedly attract the largest crowd ever to witness a race on the Charles.

The Harvard management expects to have the Pennsylvania shells in Cambridge and rigged by 12 o'clock today, and it is probable that the Quakers will take their first workout at this time. They will also row this afternoon, and if the weather is favorable, they are ex- pected to go over the course.

Because no crew enters the race this year a favorite, unusual interest is being attached to the outcome of this regatta. Harvard and Cornell will be making their first 1925 appearance, while in recent races, Pennsylvania has suffered a two length defeat from the blades of Coach Leader's Yale crew, and M. I. T. finished four lengths behind a powerful Navy eight at Annapolis.

According to reports emanating from Newell boathouse, Coach Stevens has assembled an eight this year which bids fair to threaten the supremacy of the Elis on the water. The time trials to date have been very satisfactory, and there is a decided feeling in Crimson rowing circles that Harvard is going to come through a winner Saturday.

The times announced last night call for the Freshman race to begin at 4 o'clock, the Junior Varsity 4.45 o'clock, and the Varsity at 5.30 o'clock. Should bad weather prevail at these times, the races will each be moved back a half hour. Launches will notify the crowds along the banks if there is any change of time. If it is decided to row the races upstream, this information will also be dispensed by officials from launches.

The Cornell squad will arrive Friday morning, and like the Pennsylvania crews, will be quartered at the Lennox during their stay in Boston. Under a new coach, Cornell is expected to resume its bid for premier rowing honors, and it is certain to be a formidable eight which faces the starter Saturday afternoon.

The drawings for the courses will be delayed until the arrival of the Cornell eights on Friday, and will take place sometime during the afternoon.

Coach Haines' third Freshman eight will race the Huntington School this afternoon in a mile race in the Basin. The Crimson shell will be boated as follows: Stroke, T. H. Eliot; 7. L. L. Wallingford; 6, M. M. Canfield; 5, H. R. Earle; 4, Louis Reynal; 3, C. R. Hayes; 2, L. B. R. Foster; bow, Franklin Dexter; coxswain, P. T. Haskell