14 



MASS. EXPERIMENT STATION BULLETIN 350 



Jw. n»n, nn. ^ nny Jm*. J^. flu» SIpt OcT. Ibv. Dec 



^w film. flK ^{ly Ti}r~~Tte fluo! sW Oct iW lie 



T«)k. ««. (|^lt. ««/ Jui 



Figure 2. Approximate Course of Monthly Mean Maximum Temperature in Tomato Culture 

 under Glass and in the Open in Massachusetts 



Figure 3. Approximate Course of Monthly Mean Minimum Temperature in Tomato Culture 

 under Glass and in the Open in Massachusetts 



Figure 4. Approximate Course of Monthly Mean Relative Humidity in Tomato Culture 

 under Glass in Massachusetts 



