this vessell, a Cylinder of Glasse cleare, and very transparant, that will contayne the same quantity of water, that one of the partitions will, as I, G, H; in the lowermost partition towards the bottome, let there bee a cocke, and out of the same vessell let two pipes be made to passe, the one wherof reacheth almost unto the top of the Cylinder, the other must come out by the side of the Cylinder: also out of the upper partition there must come another pipe. Moreover there must be a hole, through the top of the uppermost partition as Y. Fill the lower partition at the pipe, also the upper partition by the hole Y: note then that if you turn the cocke as the water runneth out of the lower partition, the water contained in the upper partition wil ascend throgh the pipe into the glasse Cylinder. When all the water in the lower partition is runne out at the cocke, then the water which before did ascend into the Cylinder, will fall backe againe into the upper partition: after this manner may you compose an artificiall water clocke, if you note the howres upon the Cylinder, and make the cocke after such manner, as that the water may issue out but by droppes.

Svppose A to bee a vessell full of water, having a pipe comming from the bottome, and rising up into a cup of the just height that the vessell is of; over the vessell fild with water, let there be placed another vessel, as E. From this vessell must come a pipe, and reach with in the other vessell. Now ouer this vessell there hangeth, as it were, the beame of a scale; at the one ende whereof, is fastened a peece of boord, hauing a leather nayled upon the top; at the other end of this beame must hang a weight, but not full so heauie as the peece of boord lethered is. Fill both these vessells with water, and the cup also; note then, that if you sucke out the water in the cup by the pipe on the side of it, the water in the vessell will come into it, untill it is in both of equall height: now as the water falleth downe in A, the peece of boord that is hanged unto one end of the beame falleth after it (because it is heauier then the weight) and so giueth way unto the water in E, which runneth into it; and when the vessell is filled againe with water, it beareth up the sayd peece of boord against the pipe of the vessell E, so that the water can run out thereat no longer, except the water bee againe drawne out of the cup.

Before I begin with these, take a word or two by the way. Let it bee a generall notion that no engine for water workes of what sort soeuer, whether for seruice, or meere pleasure, can be made without the help of Succurs, Forcers, or Clackes; euery of which, I haue orderly explayned both by words and demonstratiue figures.

A Succur is a box, which is made of brasse (hauing no bottome) in the middest of which, there is a small bar goeth crosse, the same hauing a hole in the middle of it; this box hath a lid so exactly fitted unto it, that being put into it, no ayre nor water can passe betweene the creuise: this couer hath a little button on the top, and a seame that goeth into the box, and so through the hole of the aforesayd crosse barre, and afterwards it hath a little button riueted on it, so that it may with ease flip up and downe, but not be taken, or flip quite out.

A Forcer is a plug of wood exactly turned and leathered about; the end that goeth into the barrell, is semicircularly concaue.

A Clacke is a peece of Leather nayled ouer any hole, hauing a peece of lead to make it lie close, so that the ayre or water in any vessell may thereby bee kept from going out.

Lay such Leather as is well tanned to soake in water, wherein there hath beene store of iron filings a long time, or else in the water that hath lien a long time under a grindstone, into the which such yron as hath beene from time to time ground away, hath fallen and there setled.

Svppose A B C were a deepe Wel, wherein you would make a Pumpe to draw water to the surface or superficies of the earth. First therefore you must prouide a pipe of Lead, or a peece of timber bored through, so long as will reach unto the bottome of the Well: that part that standeth in the water must bee cut with two or three arches, as it were, if it be wood; if Leade, it must haue somewhat to beare it a little from the bottome, that the water may thereby bee let into the pipe. Towards the bottome of the pipe in the water there must bee fastned a succur; also another of these succurs must be fastned about two foot aboue the top of the ground; then haue a bucket fitted unto the hole of the wood or leaden pipe; let it bee well leathered about, and haue a clacke at the bottome of it, and let it bee hanged with a sweepe as the figure sheweth: note that after you haue filled the distance betweene the lower succur, and the bucket with water, that if you lift up the sweepe, it will thrust downe the bucket upon the water, and presse it, the water being pressed upon by the bucket, beareth up the clacke, and comes into the bucket; then if you pull downe the sweepe, the clacke shutteth, and so the water remaynes in the bucket, which being drawen upward, there being nothing to follow but water, both the succurs open, and there commeth into the pump so much water as the buckets drew out.

Svppose A B C D to be a deepe Well, and E F to be a strong peece of timber fastned athwart the same, a good way in the water. In this planke let there bee fastened a peece of timber with a strong wheele in it, as G H, hauing strong yron spikes droue athwart the wheele within the creuise, and strongly riueted on each side: let them be three or foure inches distant from each other. Let there bee likewise made in the sayde planke two holes, in which set two hollow posts, that may reach to the top of the Well, or so much higher as you desire to mount the water; let them bee made fast that they stirre not. In the bottom of one of these posts, there must be fastned a barrell of brasse, as G H, made very smooth within, and betwixt those two posts at the top; let there bee fastned unto them both another peece of strong timber to hold them fast, lest they