E. The woodden _Tube_, through which the Air is conveyed towards the
_Cradle_.
F. The _Dore_, by which the _Grate_ and _Cradle_ is let in, which is {82}
to be set 8. or 10. foot higher than the Hole D. and the _Shutter_ made of
Iron, or Wood that will not shrink, that it may shut very close, this
_Dore_ being made large enough to receive the _Cradle_ with ease.
G. The _Grate_ or _Cradle_, which is narrower below than above, that the
Ashes may the more easily fall, and the Air excite the Fire; the bottom
being barred as the sides.
H. The _Border_ or _Ledge_ of the _Cradle_, that rests upon the _Ledge_ C.
I. Four _Chains_ of _Iron_ fastned to the four corners of the _Cradle_, for
taking of it up, and letting of it down.
K. The _Chain_ of _Iron_, to which the other are fastned.