within it, and so turn it.

The third had but one long and strong piece of Wood, which was kept up
and stayed by Shrowds, as the Mast of a Ship is. By the help of these
Shrowds, they bended and turned this piece of Wood where they pleased,
drawing the Shrowds fast on the one side, and loosening them on the
other. The _Moufl's_ Crane as well those which were fastned to this
piece of Wood, as those which were fastned to the VVeight which was to
be drawn up, had each of them three ranks of Pullies, which had three in
every rank, that three Ropes might go through them, which were not drawn
by Hand-Mills, nor by VVheels, but by Men who pulled several at one time
at the same Rope: And that this might be done with the more ease, the
three Ropes or Cables after having passed the last Pullies of that part
of the _Moufle_ which was at the top of the _Machine_; they descended
down below, each upon one Pully, which vvas but the height of the Men:
this _Machine_ quickly povverfully lifted up the greatest VVeights.

ART. IV.

_Of_ Machines _for Elevating of Waters._

These _Machines_ were of four sorts.

[Sidenote: _Lib. 10._]

The first was the _Tympan_, of which there were two sorts; The first
elevated a great deal of Water, but not very high, for it only mounted
to the Axle-tree of the _Tympan_, which was a great Wheel made of Planks
which made two bottoms divided into eight from the Center to the
Circumference, each Separation, having an opening half a Foot wide near
the Circumference to draw the Water, which being elevated upon the
Axle-tree, ran through the Cavities which were hollowed in each
Separation.

The Second _Machine_, was a Wheel which elevated the Water as high as
its Circumference, by the help of several Boxes which were fastned round
about, and which poured out the Water into a Reeve as the Wheel, having
mounted, began to descend.

[Sidenote: _Lib. 10. Chap. 2._]

The Third _Machine_ was a Chain with Buckets, as the one mounted, the
other descended, being drawn by the Axle-tree.

The Fourth _Machine_ was the Vice or _Skrew_, which is attributed to
_Archimedes_, though _Vitruvius_ makes no mention of the Inventor. This
Vice was made of a piece of VVood, long sixteen times its Diameter: about
this piece of Wood was put Obliquely a Hoop of Willow VVood besmeared
with Pitch, and it was Conducted by turning from one end of the piece of
the Wood to the other: Upon this Hoop others were put so that they we