William Fream, 1911 Encyclopædia Britannica, Volume 7… (1911)
“ Adding to this the skim-milk, butter-milk and whey, at their proper feeding value, and the calves dropped yearly, the annual aggregate value of the produce of the dairy cows exceeds $500,000,000, or is more than one hundred million pounds sterling. Accepting these estimates as conservative, they show that the commercial importance of the dairy industry of the United States is such as to justify all reasonable provisions for guarding its interests. ”
