154 MASS. EXPERIMENT STATION BULLETIN 238 



no^i- Mo,- 15 Junei June 17 Jo lyZ July 15 ■'''?. 1 AuflB iept |^ 



Figure 1. Trunk Growth of Northern Spy (in millimeters), 1922. 



HoyZ noylS Junei JunelT J^'ly^ Su\f li /Oioji «..jl6 Sept, 11 



Figure 2. Trunk Growth of Mcintosh (in millimeters), 1922. 



