CHAPTER IX.

Phosphorescent substances— Sudden appearance of flames- — Heat developed by the slacking of lime — Substances which are kindled by contact with air and water — Pyrophorus, phosphorus, naptha, and alcoholic liquids employed in different apparent miracles — The blood of Nessus was a phosphuret of sulphur ; and also the poison that Medea employed against Creusa — Greek fire — This fire, re- discovered, after many attempts — In Persia and Hindustan an unextinguishable fire was used.
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