at the end of these
Twelve-score Changes, the Extream is to be made between
the 5 and 4, which were the two Bells that made the last
Extream Change, and brings them round in their right places
again, as appears by these figures

123456.

There are but two Extream Changes in every Twelve-score,
wherein 'tis constantly observed, that the last Extream
Change is to be made between those two Bells which made
the first Extream, otherwise the Bells would not come
round at the end of the Twelve-score.

Here I have somewhat deviated from my directions before,
in making the Extream Changes; for in the last Change, which
is 123456, I made the Extream between the two nearest Extream
Bells to the quarter Hunt; but the Twelve-score Changes are
an imperfect Peal, being only a third part of the Changes
which are to be made on six Bells, and therefore not to be
brought round, unless the last Extream Change is made out
of course. To have proceeded forward in the 720, the last
Extream should have been made between the 4 and 6, which
are the two farthest Extream Bells from the quarter Hunt,
the Change next before the Extream, is 123546; now the 4
and 6 making an Extream Change, the Bells stand thus, 123564;
the Extream being made, the whole _hunt_, half _hunt_, and
quarter _hunt_ are to be hunted as before, and the Extream
Changes to be made between the two farthest Extream Bells from
the quarter _hunt_, which course will bring the Bells round in
their right places at the end of the 720. In every 720, there
are six Extream Changes, there being Six-score Changes between
each. The Twelve-score Changes are to be Rang with any whole
_hunt_, half _hunt_, and quarter _hunt_, observing to make
the last Extream Change between those two Bells which made
the first.

The 720 plain Changes are to be rang or set down One
thousand four hundred and forty several wayes, by altering
the whole _hunt_, half _hunt_, quarter _hunt_, and Extream
Bells (but the course of each is the same with that which
is before set down) which I thus demonstrate. On 6 Bells,
there are 120 several _hunts_, (viz.) a whole _hunt_, half
_hunt_, and quarter _hunt_ Six-score several times, and not
one and the same whole _hunt_, half _hunt_, and quarter
_hunt_ twice, as appears by these Figures.--

123 213 312 412 512 612
124 214 314 413 513 613
125 215 315 415 514 614
126 216 3