Cart-horse, 14 cwt.      Riding-horse, 11 cwt.

Ox, 7 to 8 "         Pig, 1 to 1.5 "

Cow, 6.5 to 8 "         Sheep, 1 "

Average weight of a man, 140 lbs.

A dense crowd of people, 85 lbs. per square foot, 44