interior Polygons are much unequal, then the Gorges
will be unequal.
D. Is a Bastion deformed, that is, if one of the
interior Polygons be so short that it can have no De∣migorge.
E. Is a Plat Bastion, that is, if the distance from
the Points of the interior Polygon be double to the
usual length.
F. Is a forked Bastion, cut off with a Tenaile, that
is, if the Angle of the Figure be less than 90 de∣grees;
and because of Water, or some other
Accident, it cannot be changed, then you may
cut off the Angle, and joyn it with a Tenaile.
G. Is a Bastion cut off, that is, separated from the
Rampire, so that its Gorges are in a Right Line with
the two Points of the flanks HF.
H. Is a Demi-Bastion, that is, such as have their
Gorge and Capital equal, and its flank half of the
Gorge.
I. Is a Platform upon an inward Angle, for the
placing of great Guns to scour the Ditch.
L. Is a Mount upon Piles for a Corps du Guard,
with a Paropet, like that of the Outworks, Cannon-proof,
necessary to hinder the Vnder surprises when
the Mote is frozen.
M. Is an indented Line, often used upon the
Bank af the Counterscarp, or upon a River.
N. Is a Counter-Guard, or Demi-Bastion, built in
some watry place before the main Bastion.
O. Is a Scillen, or a Tenail with a Breast-work
placed in the Mote, called also a Counterguard.
P. Is a Bonnet, that is, an advanced Work, like
a Ravelin, sometimes placed on high Ground,
sometimes on low.