64 Capvt IV.

g A cistern of cold Water to supply the Injecting-Pipe.

ht. b 2 The Great Leaver, movingon an Axisintheiniddle, to the inner End of which the shank of thePiston is fastned bya Chain, that hangs down fromthe Arch.

i. A Rod and Chain fixed to the outer End of thegreat Leaver. working Pumps from the Lottom ofthe mine.

k. A 'final pump supplying the Cistern g, thro thePipe w, m.

l. A Windlest, Axis, and Rope, whereby men andMaterials are conveyed up and down the mine.

m. A Pipe which by the littole Puinp k suppliesthe Cistern g with Water.

ppp the ground Floor before the Fireplace.

q. Steps going down to the sire place.

r. A Pipe conveying the waste Water from theCistern g.

hitev-