A TABLE Of the most observable matters in this Treatise of the MENSURATION of RUNNING WATERS.

    affix a piece of Lead unto the Ball by an iron Wire, and make it very fast, and frame in the top of the Ball a Bow or Noose with the said Wire, and to that fasten a long Rope, and then in the opposite place where the Lead is fixed, make an hole with an iron rod into the middle of the Ball, and stop that hole with a little fine Gunpowder, holding it suspended by the Rope: and when you would have that Light descend into the bottome of the Sea or Gulph, goe to the place, and give fire to the little hole, and when it is inkindled, let down the Ball and Lead, lengthwayes, almost to the bottome, where he shall be that would find the thing sunk, and you shall find that the said fire will illuminate very much round about the said bottom, and shall last a long time, and more or less, according to the hole made in the Ball. 'Tis to be noted, that the Ball is to be held over the head of him that diveth, for that the smoke proceeding from it will much obscure the Waters above it, so as that it will give Light only downwards; and this fire will be a dreadful sight unto the Fish, so that they will fly from so new a spectacle.

The END of the first part of the Second TOME.