20 pound

“As to their farming he says: "Having laid out their estate upon cattle at 5 to 20 pound a cow, when they came to winter them with inland hay, and feed upon such wild fother as was never cut before, they could not hold out the winter, but, ordinarily the first or second year after their coming up to a new plantation, many of their cattle died.”

A Week on the Concord and Merrimack Rivers