(_iv._) VON HUMBOLDT. In 1830 Von Humboldt brought a supposed magic mirror from Berlin to Paris to exhibit it to members of the _Académie des Sciences_. It was indeed shown to some of them at the apartments of M. Arago at the Observatoire. No reference to the occurrence is to be found in the journals of the Académie, published or private, or in any contemporary journal. Perhaps the reason is that, as is known, the experiments proved a total failure. My information on the subject is derived from Bertin (_Ann. Chim. Phys._, xxii., 1881, p. 478). (_v._) BABINET. The name of Babinet is sometimes given along with that of Arago in connection with this subject; but I am unable to find that he did anything. (_vi._) HARTING (PIETER). In their 1878 paper Ayrton and Perry refer to a short paper by Professor Harting in the _Album der Natuur_ some years before. It appears that this was a short-lived periodical, edited by Harting and Logeman, which was issued at Haarlem (A. C. Kruseman, publisher) in 1872. There is a single part (No. 3 of vol. i.) in the British Museum. No copy containing the article in question is known in England. (_vii._) TENNANT, PROF. JAMES. The well-known mineralogist Tennant is believed to have issued, about the year 1869, a small pamphlet of about four pages on the subject of Japanese mirrors. No copy has yet been found. [Illustration: (_From a Drawing in the British Museum by_ Tachibana no Bink[=o], 1784.)] [Illustration: MASK OF UZUME (O-KAME). From a netzuké in the possession of Charles Holme, Esq. (_Pilgrim_).] [Illustration: UZUME’S MIRROR] APPENDIX II. THE MYTH OF THE SUN-GODDESS AND THE INVENTION OF THE MIRROR. (_Abstracted from the account given by Mr. E. Satow in vol. ii. of the “Transactions of the Asiatic Society of Japan,” 1874._) Of all the gods of old Japan, there were two whom the father of the gods, Izanagi no mikoto, loved most. These were Amaterasu oho-mi-kami, who shone beautifully and illuminated the heavens and the earth, and her brother, Susanowo no mikoto, who was ruler of the blue sea. Amaterasu was made ruler of heaven, which she reached by climbing up the pillar on which the sky rested. Susanowo no mikoto, who was ever a _mauvais sujet_, neglected his kingdom, so much so that the rivers and seas all dried up. Amongst other evil deeds, he offended his sister Amaterasu by throwing into the room where she was weaving the body of a piebald horse which he had flayed, so terrifying her that she hurt herself with her shuttle, and retired in wrath to a cave, which she closed with a rock door. Heaven and earth were long plunged into utter darkness, during which time the more turbulent of the gods made a noise like the buzzing of flies, and the general disaster was great.