Tickets for four senior class Commencement Week activities go on sale today in the Houses and Lamont Library, James E. McKittrick '49, treasurer of the 1949 Class Day Committee, announced last night.

McKittrick also stated that all undergraduates receiving degrees in June may apply at University four for tickets to Commencement and Alumni Exercises. The number of tickets allowed for each man will be announced later by the Administration.

Tickets for the Oxford-Cambridge-Harvard-Yale track meet, to be held on June 20, and for the Harvard-Yale baseball game scheduled for June 22, may be obtained at the HAA office.

Senior Dance

First of the four class activities is the Senior Spread, a formal dance on June 21. Music will be supplied by Claude Thornhill; the price is $4.50, which includes a midnight supper.

The second event, Class Night, is set for the night of June 21 in the Eliot House courtyard, with a charge of $1 per person. On June 22, the day before Commencement, there will be an informal dinner, costing $1.50, also in the Eliot House courtyard.

The final Graduation Week activity for which a ticket needed is the informal dance on the evening of June 22. Admission is $2.40; Ruby Newman and his orchestra will play. The Third, Sixth, and Tenth reuniting classes will also be present at this dance.