The amount of total capital for any herd size may be read from these 

 lines. Also, by taking the capital reading for any herd size on the various 

 man month lines one may get some picture of the substitution of capital 

 and labor. On the whole, total capital for a given herd size is not as 

 greatly different between man month groups as might have been expected. 

 Indeed, at some points the larger labor force has more capital for the 

 same herd size. Apparently total capital is closely related to herd size 

 and is not greatly affected by size of labor force. 



The points plotted in Figure 3 are identified only by man month ranges. 

 However, when they were labeled with specific months on individual town 

 diagrams there was no discernable pattern in the location of specific num- 

 bers of months within the ranges. 



Perhaps the most striking feature in Figure 3 is the great overlap of 

 herd size between the labor force groups. The herds handled by successive- 

 ly larger labor forces are about the same sizes at the lower limits of the 

 labor force groupings. 



Table 2 and Figure 4 show the total capital per animal unit at different 

 herd sizes for the different man month groups. Two things are of interest 

 here. One is the change in average amount per animal unit as herd size 

 changes within each labor force group. In the 0-11 month group, capital 

 per animal unit falls sharply with herd size increase within the narrow 

 range of sizes shown. In the 12-23 month group, capital per animal unit 

 falls fairly sharply at first and then tends to level out. In the 24-35 month 

 group the fall is more moderate and more continuous. In the 36-47 month 

 group surprisingly there is a rise in capital per animal unit as herd size 

 increases. 



The second thing of interest in Table 2 and Figure 4 is the capital per 

 animal unit at each herd size as between labor force groups. The 12-23 

 month group uses considerably less capital per animal unit than the 0-11 

 month group. The 24-35 month group uses only a little less than the 12-23 

 month group at the lower herd sizes but the spread widens as herd size 

 increases. The 36-47 month group at its smaller herd sizes uses less capital 

 per animal unit than the 24-35 month group but at its larger sizes uses 

 more. This strongly suggests a leveling off of economies in capital use after 

 a herd size of 30 to 40 cows. 



Table 2. Amount of Labor, Herd Size, and Total Capital per 

 Animal Unit, Survey Farms 



