THERE are many different forms in which clay after it is burnt or baked is used by the builder and engineer.

Some of the more important of these will now be described under the following classification: -

Bricks.

Fireclay and Eire-bricks.

Terracotta.

Stoneware.

Miscellaneous clay goods of Earthenware, Fireclay, Stoneware, Terracotta.