10 



MASS. EXPERIMENT STATION BULLETIN 450 



Table 6. — Main Weather Controls of Massachusetts 

 Cranberry Production. 



* The figures in the.se columns merely show the positions relative to the matters in the headings. 

 ' From the 1946 Annua! Meteorological Summary for Boston published by the Weather Bureau. 

 = As in Table 12, paee 30, Mass. Agr. Expt. Sta. Bui. 433. 



^ The letter "r" in the summation column marks the years in which the July rainfall was more 

 than 5 inches, and the letter "s" marks those since 1892 with Februarv sunshine less than 150 hours. 



* .As in Table 1 of Bulletin 433. 



