^88 Natural Magick. $00^ ip .

that are made by contraries, one by blowing in the air, the ether by fucking it out.This shall be the first.

A Water-Dial.

Take a vessel of Glass like a Urinal, it is describedby the letters A B: On the top is A, where thereis a very small hole, that the point of a needle canscarce enter it; at the bottom neer the mouth, letthere be set a staff E F, that in the middle hath afirm Pillar going up to the very top of the vessel,let the Pillar be divided with the Hour-lines. Letthere be also a wooden or earthen vessel G H, fullof water : Upon the superficies of that water, placethe Glass vessel A B, that by its weight will presstoward the bottom, but the air included within thevessel, keeps it from going down : then open thelittle hole A, whereby the air going forth by de-grees, the vessel will gradually descend also. Thenmake by another Dial, the marks on the staff CD,which descending will afterwards shew the Hour-maiks. When therefore the vessel goes to the bot-tom of the wooden vessel, the Dial is done, and it is the last Hour: But when youwould have your Dial go again, you must have a crooked empty pipe, O L, the uppermouth K must be stopt with the finger K ; so K being slept with the finger, that theair may not enter, sink it under the water, that it may come within the vessel AB:then put your mouth to K, and blow into it, for that will raise the vessel upward,and it will come to its former place and work again, I shall also describe for myminds fake

Another Water-Dial,

contrary to the former , namely, by sucking in theair. Let there be a Glass vessel, like to a Urinal asI said AB, and being empty set fast on it the vesselC D, that it cannot sink down: then fill it with wa-ter, as far as B: Let there be a hole neer the top, E,wherefore fucking tbe air by the hole E, the wa-ter comes into the vessel A B from the vessel C D,and will rife as high as F G: when there ore A Bis fall of water, stop the hole E, that no air enter,and tbe water will fall down again: In the top ofthe vessel A B, let there be another very small hole,that the air may come in by degrees, and somuch as there comes in of air, so much water willgo forth. On the superficies of the vessel, makeHour-lines that may shew the Hours marked, i, 2,3,<£•<■. or if you will let the Still fastned to a Corkswim on the top of the water, and that will thewthe Hours marked on tbe outside of the vessel.

Chap. V.

tAdescription of Vessels casting forth water bj reason osAir.

N OW I will describe some Fountains, or Vessels, that by reason of air castforthwater: and though Heron ingeniously described some, yet will I set down someother* that are artifically found out by me and other men. Here is described

A