306 



SCIENCE AND PRACTICE OF DAIRYING. 



the systematic keeping of books become, and in the case of public 

 companies, according to the law of May 1st, 1859, special books, 

 which have to be audited at least every two years by an impartial 

 auditor, must be carefully kept. The proper manner of keeping 

 books for dairy purposes is easily learned. 





Fig. 83.-Machine for Weighing Milk. 



In a good system of book-keeping, not merely milk, but also all 

 milk bye-products, should be entered, not according to volume, but 

 according to weight (figs. 83 and 84). The J kilo, or pound has 

 been chosen as the unit of weight in all technical calculations in 

 dairying, since the kilo, is too large for this purpose. 



In book-keeping, an exactly accurate account of all the items 

 connected with the obtaining and treating of milk must be noted. 



