CREAMERIES AND FACTORIES 147 



for in accordance with its butter value, or, where 

 cheese is made, by its cheese value. Let us see 

 how this system can be worked, taking the case 

 of a factory paying a regular price to its con- 

 tributors of 6d. an imperial gallon, or what is 

 preferable, 6d. per 10 Ibs., for the measurement of 

 milk is never satisfactory, the fluid being larger 

 in volume when it is warm and smaller when it 

 is cold. Let us suppose, too, that the factory 

 manager is willing to pay an extra penny per 

 gallon to be distributed among the contributors 

 in proportion to the value of their milk, no milk 

 being received which does not contain more 

 than 3 per cent of fat. During the three months 

 over which the accounts run, 108,000 gallons 

 have been delivered, representing an average of 

 about 1 200 gallons a day. The extra penny 

 per gallon upon this quantity would amount to 

 450, which is the sum available for distribution 

 among the various contributors upon the basis 

 of quality. One contributor may have supplied 

 60 gallons a day with an average fat percentage 

 of 3 '2. Another may have supplied 30 gallons 

 with an average percentage of fat of 3*5, while a 



