Early Furnace Technology
The following illustrations are from various papers in: Craddock, P.T. and Hughes, M.J., Eds. (1985). Furnaces and smelting technology in antiquity. British Museum Occasional Paper 48, London, England.
A domed type furnace with a re-heating hearth at a Romano-British archaeological site. (pg. 163).
This schema of a crucible shaped copper-smelting furnace is from a copper-bronze age site in the Aravalli Hill site of India. (pg. 65).