(If the tenaille E is reduced in width towards the gorge, as shown alternatively, it is called a swallow-tail. If the double tenaille is reduced as at G, it is called a bonnet de prêtre. Such works were rarely used.)
H. Hornwork: Much used for gates, &c.
I. Crown-work.
K. Crowned hornwork.
L. M. New forms of tenaille: (N.B.—These are the forms which ultimately retained the name.)
N. New form of work called a demi-lune lunettée, the ravelin N being protected by two counterguards, O.
P. Re-entering places of arms.
Q. Traverses.
R. Salient places of arms.
S. Places of arms without traverses.