At one time most towns of any size had somewhere a small foundry which would undertake small casting jobs, often more out of interest and good neighbourliness than for commercial gain. Those days are no more and model engineers in many areas must either adapt commerically available castings or send away to a specialist foundry which will undertake small work, often at some expense and with some delay. The alternative is to set up a home foundry and to make one's own patterns and castings. This text covers all the basic principles of foundry work, describes materials and techniques, pattern-making, moulding boxes, cores and core-boxes, metals, all types of furnaces, and includes step-by-step procedures with examples of cylinders and wheels.