It is very easy to understand the bonds in brickwork if the fundamental
forms are known. There are, in reality, but two real bonds: namely, the
English and the Flemish bond. The so-called running bond is no bond
at all; while the common bond is found only in common brick walls,
and uses a bonding course of headers every sixth course. The Dutch
bond is only a slightly altered arrangement of the English bond, and
is produced by merely shifting the centring of vertical joints of the
stretcher course. By arranging these fundamental bonds in varying
manners a decorative pattern can be produced on the wall of brick.
[Illustration: 15. Brick Joints]