A Treatise on Milch Cows : Whereby the Quality and Quantity of Milk Which Any Cow Will Give May Be Accurately Determined by Observing Natural Marks or External Indications Alone : the Length of Time She Will Continue to Give Milk, &C.

A Treatise on Milch Cows : Whereby the Quality and Quantity of Milk Which Any Cow Will Give May Be Accurately Determined by Observing Natural Marks or External Indications Alone : the Length of Time She Will Continue to Give Milk, &C.