When treating of carbuncles and carcinoma of the eye, Paulus Ægineta observes that the affection may be alleviated “by the injection of soothing (_tenera_, απαλα) collyria, such as the _Spodiacum_, _Severianum_, and the like.”[458] And again, when giving his formulæ for different collyria in another part of his works, he applies the term απαλον to the collyrium _Diathalium_, or collyrium made from olive leaves (Διαθαλιον απαλον), upon the same principle, and evidently with the same signification, as the word is used in the Tranent stamp, as applied to the collyrium _Crocodes_.[459] I am indebted to the kindness of Mr. Birch for the impressions of two unpublished oculist-stamps, contained in the British Museum. Their forms and inscriptions are represented in Plate I., Nos. II. and III.; and I shall describe them under these numbers. They are supposed to have formed part of the collection of Sir Hans Sloane; but no note exists as to the precise locality in which they were discovered. SECTION III. STAMP NO. II.—CONTAINED IN THE BRITISH MUSEUM. This large stamp consists (Plate I., No. II.[460]) of a flat quadrilateral stone, about an inch and a half broad, and engraved upon three of its sides. A portion of one corner of the stone is broken off. The probable deficiency which is thus produced in one of the inscriptions is supplied in this, and in some other similar instances in the sequel, by Italic letters. The three inscriptions read as follow:— 1. SEX: JUL: SEDATI CROCOD PACCIAN 2. SEX: JUL: SEDATI CRO- CODES DIALEPIDOS 3. (_Sex_): JUL: SEDATI CRO- (_cod_)ES AD DIATHES The name of the oculist—SEXTUS JULIUS SEDATUS—is imperfect on the third or broken side, the prænomen “SEX” being wanting on that side in the first line, and the middle syllable “COD” of the word Crocodes being also wanting, from the same cause, in the second line. The restored reading of this third side—viz., SEXTI JULII SEDATI CROCODES AD DIATHES_es_—need not be dwelt upon, as it is so very similar to that on one side of the Tranent stone. The other two sides contain the names of two new varieties of crocodes.