12 



MASS. EXPERIMENT STATION BULLETIN 433 



Graphs and Tables 



The weather elements in Figures 2 to 12 and 17 to 20 are arranged in lapping 

 groups, and the percentages in Figures 2 to 20 are based on the relationship of 

 the large crops to the sum of the large and the small crops. It is arbitrarily con- 

 sidered that all crops (potential production) more than 7 percent larger or smaller 

 than the smoothed sliding nine-year average for their year (Tables 1, 2, 3) are 

 large or small as the case may be. Figures in circles at the intersections of the 

 graph lines with the vertical lines in Figures 2 to 16 show the number of occur- 

 rences involving departures of more than 7 percent, both plus and minus, from 

 the smoothed sliding average; those without circles show the large-crop per- 

 centages to the nearest integer. The corresponding data for Figures 17 to 20 are 

 given in tables which accompany the charts, the numbers in parenthesis showing 

 the occurrences and the others the large-crop percentages. 



Nineteen tables are included here. The coefficients of correlation are given 

 at the end of those tables showing correlations. Tables 10-17, inclusive are 

 included to "complete the picture" and for the use of any who may wish to pur- 

 sue these studies further. 



^ 100 



o 



a 



<-> 90 



FIGURE 2 



2250 2350 2450 2550 2650 



TO TO TO TO TO 



2500 2600 2700 2800 2902 



HOURS OF SUNSHINE IN YEAR BEFORE THAT OF CROP 



SUNSHINE AT BOSTON AND CRANBERRY PRODUCTION 

 IN MASSACHUSETTS .1894-1940 INCL. 



