CORN A.ND HOG CORRELATIONS 
25 
measured in terms of their respective average amounts of variation. 
Figure 16, reading from left to right, represents conditions in six 
successive years, with each year divided into a longer summer season 
and a shorter winter season. A unit deviation in the corn crop is 
represented as occurring in the third summer. The observed relative 
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Fig. 17.— The typical variations of the quantities indicated along the left margin in relation to afgiven; 
variation in the December farm price of corn. The solid lines represent the observed average variations 
(correlations), the dotted lines, those expected according to the theory advanced in the text. The' 
vertical lines separate the longer summer and shorter winter seasons of six years (see legend of fig416> 
average deviations in corn crop in the two preceding and two following 
years are shown in the top line, and the corresponding relative 
deviations in corn price in the line below. The corn price deviates 80) 
per cent in relation to a given corn crop. Figure 17 gives similarly 
the average deviation of the various quantities in relation to the price 
2348— 25f 4 
