<<5^ Ji^C^GS Wa.Y 173 



These replies show an average increase daily per cow of 2.52 pounds. 



Right here we would like to quote from a few of these letters from users 

 of James cups who base their statements on milk records. Anyone who 

 desires may ha\e many more such letters by asking for a copy of our Edu- 

 cational Department Bulletin No. 4. 



W. H. Martin, Herdsman Arcady Farm, Lake Forest, Illinois, says: "According 

 to our milk records James cups increased our milk yield 4 pounds per cow per day." 



Mr. Curtis O. Merrill, Framingham, Mass., states: "Our milk records show that 

 James cups increased the milk yield from 2 to 4 pounds per cow per day." 



In Hoard's Dairyman, April 5, 1918, under the heading "Cow Testing Association 

 Reports" a cow tester writing for the Chehalis District, Washington, says: "One man 

 installed individual drinking cups and the daily milk flow immediately increased nearly 

 4 pounds per animal." 



Mr. Willard C. Owen, Mokena, 111., says: The James cups are a good investment. 

 The output of milk from my herd increased from 56 gallons to 64 gallons per day 

 within three days after installing the cups." (This is an increase of almost 159<.) 



L. F. Duggan, Gainesville, N. Y., writes: "My tenant says the James cups in- 

 creased the milk yield 30 pounds a day for ten cows, this being shown by the milk 

 records." 



D. D. Decker & Son, South Dayton, N. Y., basing the statement on their milk 

 record reports an increase of 20'/J as the result of using James cups. 



These letters are but fair samples of reports that reach us day by day. 



How Water is Turned to Milk 



A little thought makes clear the reason why James cups so greatly increase 

 milk yields and dairy profits and how it is that they turn water into milk. 



Milk is 87'^;. water. 



To make milk, cows must have water just as they must have feed. 



To make maximum yields of milk, cows must have all the water they 

 want, whenever they want it day and night. 



Most cows make too little milk because they get too little water. 



The average dairy cow, when producing her maximum, drinks 15 to 18 

 gallons of water daily; high producing cows drink more. It is recorded that 

 one famous dairy cow giving 700 pounds of milk a week drank nearly a 

 barrel of water a day, or about 3 pounds water for each pound of milk- 

 Drinking an average of 1 5 gallons water daily, 20 cows would require 

 300 gallons water each 24 hours; 30 would need 450 gallons; 40 cows 600 

 gallons; 100 cows 1,500 gallons. 



