The Mysteryes of Nature and Art / Conteined in foure severall Tretises, The first of water workes, The second of Fyer workes, The third of Drawing, Colouring, Painting, and Engraving, The fourth of divers Experiments, as wel serviceable as delightful: partly Collected, and partly of the Authors Peculiar Practice, and Invention

by John Bate

In the moueable Perpendicular the glasse being artificially hanged, moueth up and down with the water.

How to make the water.

I must confesse, that any water that is not subiect unto putrifaction, or freezing, would serue the turne, but Art hath taught to make such a water as may bee both an ornament to the work, and also delectable to the eye.

Take two ounces of vardigrease in powder, and infuse it so long in a pint of white wine vineger, untill it hath a very green colour, then poure out the vineger gently from the vardigrease: take also a pint and a halfe of purifide May-dew, and put therein 6 ounces of Roman vitreoll in grosse powder, let it stand till the vitreoll bee throughly dissolved; then mix this with the former water, and strain them through a cap paper, and put it into a cleane glasse well stopped, and its ready for use.

Another.

Take a gallon of rayn water that hath setled, infuse therein a day and a night 4 pound of quick lyme; stir it about with a cleane stick oftentimes in the day; in the morning poure the cleere water off from the lyme, into a brasse pan, and adde thereto 3 pound of sal armoniack; let it stand fiue or six houres, afterwards stir it about untill it be of a perfect blew colour, then straine it through a browne paper rowled within a tunnell, and reserue it for your use. This water is not so good for use as the former.

How to make the Circular glasse.

First you must prepare two glasses, the fashion whereof let be like unto the figures marked with the letters A, B, and C, D. The glasse C, D, is open at both the ends, also in the middle there is a neck comming up of sufficient widenesse to receiue the shank end of the glasse marked with the letters A, B. Then fill the glasse C, D, a third part, with either of the waters, and diuide the glasse into so many equall parts as you would haue degrees; rarifie the ayre in the head of the glasse A, B, by holding it to the fire, which being yet warme, reuerse the shank of it into the neck of the glasse C, D. Note that if the water do not ascend high enough, you must take the glasse A, B, out againe, and heat it hotter; if it ascend too high, heat it not so hot. If it be in the dog-dayes, and extreme heat of summer, 1 and 2 are good degrees; if the weather be most temperate, then 3 and 4 are best; if a frost, 9 or 10. When you haue hit an indifferent degree, lute the joynts very close, and fasten a ribben unto the top of the glasse to hang it by. In this glasse the water will with cold ascend the glasse A, B, with heat it will descend the glasse A, B, and ascend the hornes of the glasse C, D.

How to make the single perpendicular glasse, whose water ascendeth with cold, and descendeth with heat.