The 1916 track season opens today with the preliminary events in the Pennsylvania Relay Carnival at Franklin Field, Philadelphia. The events comprise high and preparatory school relay races, in which all the prominent Eastern schools will be represented. The 440 hurdles will probably have few entries, as it is a hard event and not many hurdlers can cover the distance in fast time. The sprint and distance medley relay races are the most important events on today's program. In the sprint medley race, the first and second men run 220 yards, the third 440 yards and the fourth 880 yards. The best relay teams in the country will compete in this event as well as in the distance medley, where the first man runs a quarter, the second a half, the third three-fourths of a mile, and the anchor man a mile. Last year these two races were won in record time and this year, from the condition of the contestants, it would seem that the times would be lowered still more. As these events are considered next in importance to the one-mile college relay race championship on Saturday, most of the interest is centred in these today.

The Olympic Pentathlon, which consists of the running broad jump, throwing the javelin, and the discus, will be staged this afternoon. This is another event comparatively unknown to American athletes and in which few care to compete.

The other field events today are throwing the 56-pound weight, the hammer throw, and the running hop, skip, and jump.

Squad Leaves This Morning.

E. R. Roberts '16 will compete in the hammer throw and throwing the 56-pound weight. He left yesterday afternoon for Philadelphia and the rest of the squad, in addition to Coach Donovan, Manager F. P. Clement, Jr., '16, and rubbers, will leave from Back Bay Station this morning at 10.05 o'clock. The following men will make the trip: Captain W. J. Bingham '16, C. S. Babbitt '18, A. Biddle '16, J. Coggeshall, Jr., '18, H. J. Coolidge '16, G. G. Haydock '16, J. O. Johnstone '16, A. T. Lyman '16, H. W. Minot '17, W. Moore '18, T. R. Pennypacker '16, W. Rollins '16, E. A. Teschner '17, and W. Willcox, Jr., '17. The squad will go to Philadelphia immediately on arrival in New York and will spend the night at the Hotel Allphia there.