REGIUS MORBUS, as used by the classical Latin authors, must not be confounded with the King's evil, or Regius morbus, of the writers of the middle ages. In the former it means jaundice (Herat,' Art. Poet,' 453), called also Yurepos, " morbus arquatus," and " aurugo " (or " aurigo " ); in the latter it means scrofula. (Senor:ma.] The 'derivation of the term as applied to jaundice is both uncertain and unsatisfactory. According to Serenus Samonicus (` De Medic.,' cap, 58, v. 1033)— "Regius sat vero signatua nomine morbus, Molliter tile quouiam celsa curator In aula." Varro (spud Plin., ' Hiet. Nat.,' lib. xxii., cap. 53, ed. Tauchn.), " Regium cognominatum morbum arquatum tradit, quoniam mulso curatur ; " " Scilicet " (says Doering, ad Horst., loc. cit.), "mulsum (vinum melle eondituna) pertinet ad delicias, quas reges imprimis et beatiores appetunt et facile sibi comparare possunt." The same derivation is given by Cams (` De Medic.,' lib. iii., cap. 24), who says the cure is to be attempted by various kinds of exercises : " Lecto etiam et conclavi cultiore, luau, joco, India, lascivia, per gum wens exhilaretur, ob gum ?via, morbus dictus videtur." Blancardus
(Blunckaert, or Blankaard) in his ' Lexicon 3Iedicum,' is rather inclined, " ab auro, metalloruni rege, denominationem statuere, sicut et Aurigo, ab auri colore." Dr. Good (' Study of Medicine ' ) says, " the meaning of Regius, as expounded by Celsus, will, I apprehend, content very few ; " he then remarks that this and the two other Latin names of the disease (Arquatus Illorbus and Aurugo)" are not indeed univocals, but very clearly equivalents, and equally import gold, golden crown, golden bow, or circumfusion ; the colour of the disease, and its encompassing the body." Each of these derivations appears somewhat far-fetched and unsatisfactory, and the term is probably one of those of which no plausible explanation can be given.