Due to the early hour of darkness, the 5:30 o'clock conditioning class will hold its exercises in the Indoor Athletic Building starting tomorrow, Norman W. Fradd, assistant director of Physical Education, announced yesterday.

The class will now be under the direction of Ulysses J. "Tony" Luplen '39, former Harvard baseball captain, and now the Boston Red Sox regular first baseman. "Iron Man" Luplen has to keep in condition during his winter layoff, and running the 5:30 class is a good way to do it.