Friday morning, one florin to Salai to spend; he had 3 soldi. In bread s. d. / In wine s. d. / In eggs s. d. / In mushrooms s. d. / In fruit s. d. / In bran s. d. / At the barber s. d. / In shoes s. d. The wall of the Compari beats against the 2nd pile of the Carraia, at the 4th point of scirocco. The weir of the Compari, at 1/2 of libeccio. The wall of the bird at 3/4 of scirocco, and the house of the island at 1/2 of maestro.

...the power of that percussion is there consumed, so that only a small part of it descends to the point of the pile; and that little which does descend goes not in a straight line but sinuously, because the part of the power that strikes the bank meets its curvature and immediately runs off to the opposite side of the pile, and strikes the bank tangent to it at that place, and then rebounds to the opposite side; and so, snaking like the water of rivers between its banks, striking now here, now there, in such a way that the power goes on consuming itself little by little; and whatever is spent along the way is subtracted from the original sum, so that there remains in the point of the pile the force of a percussion of little worth.

Of the bird that moves without wind or beating of wings. The motion of the bird, without beating of wings or aid of wind, makes its course along a steeply declining oblique, and then rises with the reflex motion. Which reflex motion rises to 7/8 of the height of its incident motion, and so continues little by little until it comes to the ground.

Of the motion against the wind, without beating of wings, which raises the bird. Here the incident motion is under the wind, and the reflex motion will be above the wind.