Slides
Wheel barrows.
The two-wheeled barrow carries 4 loads of the single one, at once.
it is loaded & carried 30. yards in 3’ + 1½ = 4’½
it will do then exactly double the work in the same time. loading being equal.
a man digs & carries 50.yds. 5. cubical yards of earth in a day of 12. hours.
a man carries 75. bricks with old lime sticking to them, say 500.℔ in the two wheeled barrow on level ground.
24. cubic yards of very solid earth made 122. loads, which is 3½ cub. feet to a load.
© 2025 Thomas Jefferson Foundation, Getting Word: African American History at Monticello supported by The Mellon Foundation