THi: MILK SUPPLY OF CHICAGO 



177 



in: chart shows a composite graph of several companies' ex- 

 perience during the period of raise in price. The price of milk 

 was raised from 10^ to 13^ the first of October, 1917, and 

 lowered to 12^ per quart on November, 1st, 1917, and remained 

 stationary throughout November and December. 



100,000 



95,000 



90,000 



85,000 



60,000 



II Id 25 

 OCTOBER 



6 (5 22 29 6 13 



NOVEMBER DECEMBER 



The figures on the left of the chart illustrate the number of 

 points sold. A basis of 100,000 points was chosen as an 

 arbitrary figure and the graph shows the decrease on that basis. 

 The figures at the bottom represent the end of weeks. It may 

 be necessary, to explain the meaning of the word ' ' point ' '. 

 A point is considered a quart of milk, or two pints of milk, 

 one-half pint of cream or a quart of buttermilk. We may, 

 therefore, assume that the figures on the left represent quarts 

 of milk. 



There was a sharp decrease in consumption when the milk 

 was raised from 10^ to 13^ per quart. After November 

 1st consumption gradually began to rise, although it did not 

 approach normal. 



From an investigation conducted by several milk companies, 

 it was found that the greater percentage in reduction of 

 consumption of milk due to increase in price took place in the 

 poorer sections of the city. Similar investigations disclosed 

 that a very small percentage resorted to the use of canned milk, 



12 



