Free fall and a ship's buoyancy; a capped head
Heavy bodies fall toward the world's centre and speed up; a ship displaces its own weight of water
A red-chalk note states the law of free fall: every heavy body descending freely makes for the centre of the world, the heavier falling the sooner, and gaining speed the further it drops. A second note, beside a small sketch of a ship on the water lettered a n n, gives what amounts to Archimedes' principle: the water pushed aside by the ship weighs exactly as much as the ship itself. At the centre of the sheet is a red-chalk three-quarter head wearing a large cap.
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The law of freely falling bodies
Every heavy body that descends freely directs itself toward the centre of the world; the one that weighs more descends the sooner, and the more it descends the faster it becomes.
A ship displaces its own weight of water (a n n)
Beside a small drawing of a ship on the water, marked a n n, the note states that the water driven from its place by the ship weighs exactly as much as the ship's own weight.
Three-quarter head with a large cap
At the centre of the sheet a red-chalk sketch gives a three-quarter face wearing a large cap or beret.