of that perfect cross; so that the candle with its light may be within, and near the bottome of the said Bucket. This being done, let down the Bucket, with the candle in it gently unto the bottome, which doing, you shall see the burning candle clearly enlighten the bottome of the Water. And this Bucket you may remove from place to place, without drawing it upwards. The truth is, that this candle will not long continue burning, but will serve for a little while, and when it shall go out of it self, it may be drawn up, relighted, and let down, as occasion requires: but the greater that the Bucket, and the lesser that the candle shall be, so much the longer time shall it keep its light under Water: and therefore if the said bottome were very deep, it would be requisite to perform that essect with so much a greater Vessel, as a great Caldron, but yet of Brals, or by that means the candle shall continue longer lighted.
But in case that a Ship or Bark were foundered in some spacious and profound Gulph, and that the exact place where it sunk were unknown, and that the bottome of the said spacious Gulph were very obscure, it is manifest that so little a light as that spoke of in the precedent Explanation would hardly serve. And therefore if you would convey thither one much bigger, you may do it severall wayes, of which one is this. Take nine ounces of refined Saltpeter, six ounces (Greek weight) of Brimstone that is clear and transparent, three ounces of Camphire refined, and one ounce of Mastick; and beat all these things severally, not very small; and when you have beaten them, mix them all together in an Earthen Pan; and when they are well mingled, put thereto three pounds of common Gunpowder, and then remingle them very well together; and afterwards put therein four ounces of oyl of Stone, and mix all very well; and this done, take a Cartredge thereof, and give fire to it; and if it burn too slowly, put a little more Gunpowder to it, but if it burn too vehemently and suddenly, add thereto more oyl. Put this Composition, after this, into a little Bag of double Canvis, of such a widenesse, that when all the mixture is out, therein it may be as broad, as high, and cram the Composition hard down into the Bag; and then with very good Pack thread sew up the mouth of the Sack, cutting away the superfluous Canvas. Then winde a good hempen cord round about it very hard every way, reducing it to the form of a round Ball, and after it is very well bound and swathed about many severall times, you must melt Brimstone into a great Vessel, and when it is melted, roll the said Ball therein so, as that it may be covered all over with a crust of Brimstone. And this being done Vvv affix
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