an Inch and half Augur, and well pinned into one ano∣ther
with round Oaken Pins, made tapering towards
the point, and so strong, that with the hard blows
of a Mallet, they may drive stiff into the Augre-hole,
and keep the Tennant firmly in the Mortess. The
manner of making a Tennant and Mortess is taught
in Exercise 5. § 17. But because the Stuff Carpen∣ters
work upon, is generally heavy Timber, and con∣sequently
not so easily mannaged as the light Stuff
Joyners work upon; therefore they do not at first
pin their Tennants into their Mortesses with wood∣en
pins, lest they should lie out of square, or any
other intended Position: but laying a Block, or some
other piece of Timber, under the corner of the Frame-work
to bear it hollow off the Foundation, or what
ever else it lies upon, they drive Hook Pins (describ∣ed
Plate 8. § 6.) into the four Augre-holes in the cor∣ners
of the Ground-plates, and one by one fit the
Plates either to a square, or any other intended Po∣sition:
and when it is so fitted, they draw out their
Hook Pins, and drive in the Wooden Pins (as aforesaid)
and taking away the wooden Blocks one by one from
under the corners of the Frame, they let it fall into its
place.
But before they pin up the Frame of Ground-plates,
they must fit in the Summer marked PP, and the Gird∣ers
QQ, and all the Joysts marked aaaa, &c. and the
Trimmers for the Stair-case, and Chilmney way marked
bb, and the binding Joysts marked cc, for else you can∣not
get their Tennants into their respective Mortess
holes. But they do I say fit all these in while the frame
of Ground-plates lies loose, and may, corner by cor∣ner,
be opened to let the respective Tennants into their
respective Mortesses, which when all is done, they
frame the Raising-plates just as the Ground-plates are