Five thousand boys will take part in the third annual rally and demonstration of the Greater Boston Council of the Boy Scouts of America, to be held in the Stadium this afternoon. Beginning at 2 o'clock with a march in review, for which the Regiment Band will furnish music, the scouts will present a varied and extensive program lasting until "retreat" is sounded. Demonstrations as well as competitions, are included in the festivities.

The territory from which the Council recruits its members includes not only Boston and the immediate suburbs, but also all the townships lying within a radius of 25 miles. The rally today is the major event of the year for the scouts, and keen competitions in all the classes is expected. Thirty thousand people will probably witness the demonstrations. All scout activities will be represented in the events.