Glossary

In medieval fortifications, a tower or bay of timber construction. (See illustration p. 136.)

Pipe manufactured from an alloy containing 85 percent copper and 15 percent zinc. The advantages and disadvantages of brass pipe

1. Any copper alloy having zinc as the principal alloying element, but often with small quantities of other elements. 2.

Descriptive of weak, brittle wood that has little resistance to shock or bending and usually breaks quite abruptly.

A fence or rail around the opening of a well.