“…The dairy farmer feeds his cows so that they get, not only a bodily maintenance ration, but in addition a milk-producing ration, which is calculated at so many pounds of food per gallon of milk. …”

“…But the poorer women, those who can only spend four or five shillings per head per week on food, do not get anything like an adequate maintenance ration of protein, let alone additional quantities for milk production, so there is little wonder that she can spare none for milk. …”