Take any vessell, of what bignes you please, fill it with water, then take a Crane (that is a crooked hollow Cane) one end wherof, let be somewhat longer then the other; put the shorter end of it into the vessell of water, and let the longer end hang out of the vessell, unto which longer end, put your mouth, and draw in your breath, and the water will follow; then withdraw your mouth, and you shall see the water runne so long, till it come equall to that end of the Cane which is within the vessell.

Take a deep vessel, having two loopes on one of the sides, fill it nigh full with water: then take a hollow Cane, like unto the aforesayd, but let there bee fastned unto the shorter end a wooden dish; put the longer end heereof through the loopes on the side, and that end that hath the dish fastned unto it into the vessell of water, with your mouth as you did in the former, draw out the ayre, and you shall see that as the water runneth out, the Crane will sinke lower and lower, and so will continue running untill the vessell bee drawen empty.

Make, or cause a pot to bee made of what fashion best liketh your mind, and make a large hollow cane to stand up in the midst thereof; having at the bottome 2 or 3 small holes; let the top of this cane be close: then make a hole in the bottome of the vessell, and put up a little cane hollow at both ends, into the other cane, so that the one end therof may almost touch the top of the great cane, and it is done. Note, that if you put into this vessel so much liquor, that it swimme above the top of the cane, it will of its owne accord, run and never cease so long as there is any liquor in the vessell; but if you fill it below the cane, it will not run at all of it selfe: the reason whereof is this; the ayre being the lighter element, doth ascend into the higher place, but being drawne as in the two first demonstrations out of the Crane, or forced, as in this, by the weight of the water in the vessell, the water then tendeth downewards unto its proper place.

Let A, B, C, D, be the foot, at each end whereof, place a vessell equall in bignesse, the one to the other; as D, E; also let there passe a hollow cane from the one to the other, as A, R, A, the ends whereof must almost touch the tops of the sayde vessels; in the vessell D, there must bee a hollow pipe, as F, whereby you may by help of a tunnel powr water into the vessell: also in the vessell E, there must be a crane, as G; now if you fill the vessel E with wine almost unto the top of the crane, and afterwards stoppe the mouth of the vessell, that the ayre may not breath foorth, it will not run of it selfe: but if you put water into the vessell D, the ayre contayned in it, will passe through the hollow pipe, A, R, A, into the vessel E, where striving for a greater quantity of roome, it presseth the wine out of the vessell E, (by the crane) answerable in quantity unto the water powred into the vessell D.

Let there bee 2 vessels placed upon one foot, having a hollow cane passing from one to the other (as I taught in the precedent probleme) but let there bee 2 cranes as F, G, one in each vessell; then fill one of the vessels with wine, but not above the crane, so it will not runne of it selfe: but if you powre water into the other vessell, untill it bee full, it will cause that wine shall runne out of the one, and cleare water out of the other.

Let A, B, C, D, bee a vessell having a partition in the middle, as E, F, let there be placed upon