4. Required the weight of a cylinder of wrought iron 10 inches long and 5½ diameter.

Set 10 upon b to 283 (the gauge-point) upon a ; and against 5½ upon d is 66-65 pounds on c.

5. What is the weight of a dry rope 25 yards long and 4 inches circumference ?

Set 25 upon b to 47 (the gauge-point) upon a; and against 4 on D is 53.16 pounds on c.

6. What is the weight of a short-linked chain 30 yards in length, and 6/16 of an inch in diameter ?

Set 30 upon b to 52 (the gauge-point) upon a ; and against 6 on d is 129-5 pounds on c.