D R X. The channel wales, parallel to the main wale.

S U S. The sheer rail, parallel to the wales.

T t. The rudder.

A t F. The rake of the stern.

V W V. The waist-rail.

P i i. The drift-rails abaft; and i a, the drift-rails forward.

T U C. The water-line.

X X. The rails of the head.

Y. The knee of the head, or cutwater.

Z Z. The cheeks of the head.