Chemistry frontispiece. Chemistry is represented by a venerable philosopher seated near a sand bath furnace, in the act of performing the chemical analysis, surrounded by various instruments. Behind him stands a female clothed in a saffron coloured vest, with a coronet upon her head, and a globe in her right hand, attentively observing a young man who is busily employed in melting a diamond by the force of a lens acted upon by the rays of the Sun. Copperplate engraving From the Encyclopaedia Londinensis, or Universal dictionary of arts, sciences, and literature; Volume IV; Edited by Wilkes, John. Published in London in 1810.