OUTDOOR EQUIPMENT 331 



its paths become better turfed, and its surrounding plant- 

 ings develop. It was made by a few weeks of labor on the part 

 of two students, and it cost less than ten dollars for materials. 

 Gathering places for larger numbers may be made on the 

 same general plan. The author once took a class in natural 

 history out to a small grove, and set the members studying 

 the trees and the slopes with a view to locating and arranging 

 therein, with the least possible disturbance to the wild wood, 

 an outdoor auditorium for public addresses, concerts and 

 sylvan plays. The result is the simply arranged natural 

 amphitheater shown in fig. 140: A is the floor plan; B is 



FIG. 140. Diagram of an outdoor auditorium. 



