CHAPTEK XII. 



TABLES— READY RECKONER-EXAMPLES. 



In this final chapter are given further tables of assist- 

 ance in arranging rations and in the practice of substitu- 

 tion, and these are followed by an example illustrating 

 their use. The tables are numbered to follow on after 

 the numbers of tables in preceding chapters in order to 

 avoid confusion. 



Table V. shows the variation in the cost of 100 heat 

 units (see footnote, p. 73) according to variations in the 

 market price of each food. It therefore supplies similar 

 data to that given in Table IV. (p. 73), but is adapted 

 to a wide range of prices. 



Table VI. shows the comparative values of the dif- 

 ferent foods by giving the equivalent of 1 lb. of each 

 food in terms of the various other foods. In other 

 words, it enables the reader to see how much maize, or 

 barley, or dried grains respectively, is equivalent in real 

 work-producing power to 1 lb. of oats, and similarly for 

 each of the foods. 



Table VII. shows the relative market prices of various 

 foodstuffs at which they provide equal nutritive values. 

 For example, when buying oats at 18s. per 320 lbs., 

 the same nutritive units are being obtained for every ^1 

 expended as when buying maize at 36s. per 480 lbs., or 

 dried grains at 110s. per ton. If oats were at 17s., then 



102 



