In a paper by Sir H. Davy, published in the Philosophical Transactions, 1814, he describes the compound of tin and iodine procured by heating these bodies together, out of the contact of air, as of a deep orange colour, fusible at a moderate heat, and volatile at a higher temperature. The compound obtained by Gay-Lussac, by gently heating tin with twice its weight of iodine, and more recently by Rammelsberg, by the same method, is described by them as a reddish-brown, transparent substance, yielding a powder of a dirty orange-yellow colour, and easily fusible.