In: The Imperial encyclopaedia or, Dictionary of the sciences and arts : comprehending also the whole circle of miscellaneous literature. In this work all the sciences are digested in a systematic form, and exhibited according to the present highly improved state of knowledge; and every term of art amply explained in alphabetical order. The whole including all the modern discoveries in astronomy, chemistry, electricity, galvanism, geography, domestic and political oeconomy, &c. &c. &c. ; with a general view of all empires, kingdoms, states, countries, mountains, seas, rivers, lakes, &c. &c. &c. and a concise account of patriarchs, prophets, apostles, philosophers, poets, painters, authors and their works, heroes, lawyers, and statesmen, with every other topic of information essential to a work of this nature / by W.M. Johnson and Thomas Exley, (1812)

In: The life of Sir Humphry Davy : late president of the Royal Society, foreign associate of the Royal Institute of France, &c. &c. &c / by John Ayrton Paris, (1831)

In: A treatise on electricity and magnetism / by Jams Clerc Maxwell, (1873)