CORN AND HOG CORRELATIONS 
have been taken, 4 the figures published annually by the Cincinnati 
Price Current have been used. These figures go back further than 
any others which are available. 
The western hog pack (fig. 5) has been considered separately from the 
pack and receipts for slaughter reported for the East (iig. 6) . For 
the latter, data go back only to 1879. The packing year in both- 
cases begins March 1. The western hog pack, as tabulated by the 
Cincinnati Price Current, meant practically the Corn Belt, while tne 
eastern pack was that of the Atlantic seaboard. The Pittsburgh 
market was included with the western, but Buffalo with the eastern. 
In the earlier years all packing on a large scale was necessarily 
confined to the winter months. Summer packing was just begin- 
ning in 1871. In the case of the western pack it has seemed desir- 
able to treat the two seasons separately (figs. 7 and 8) as well as 
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-p IG 5 —The annual wholesale slaughter of hogs at western markets and an estimate of the trend, year 
beginning March 1, 1870 to 1915 
combined, the summer pack consisting of the eight months, March 
to October inclusive, and the winter pack the 4 months, November 
to February inclusive, as reported by the Cincinnati Price Current. 
The average live weight for the two seasons also is available (figs. 9 
and 10), extending back to 1871 in the case of winter pack but only 
to 1889 in the case of the summer pack. The fluctuations in sum- 
mer and winter pork supply are indicated by the product of pack and 
live weight (figs. 11 and 12). To obtain actual pork from the com- 
mercial pack it would be necessary to multiply by the dressing per- 
centage, but for the present purpose it is unnecessary. The price 
of western summer and winter hogs, respectively, is shown in Figures 
13 and 14. The data for the summer hogs go back only to 1880. 
The figures from which the graphs are made are given in Table 1. 
* Yearbook, U. S. Department of Agriculture, 1920, p. 753. 
