How to make a knife leap out of a pot.
When you are in company, and intend to make mirth, have a pot full of water standing on a table, then take a piece of whale-bone about three inches long, let it be pretty stiff, it will spring the better; take also a new stiff card, and fold it down the middle long-ways, cut a hole through both folds at each end, half an inch or more from the ends, put one end of the whale-bone in at one end of the card, bend it like a bow, then put the other end of the whale-bone into the other end of the card, set this into the pot, with two inches or more deep in water, then place the handle of your knife upon the uppermost part of the whale-bone, with the point upwards: use some words of art, as Presto vet, or Omporte.
Note, I have invented a new instrument to perform this fancy, which is to be admired by all ingenious persons.