This inscription, which affords no external indications of its origin, was published by Böckh among the Attic decrees on very slender grounds, which he himself practically recalls in the Appendix, C. I. G. vol. i. p. 900. With reason, therefore, Köhler in vol. ii. of new Berlin Corpus has not included it among the Attic decrees. In December 1880, I re-read this inscription, together with most of the other marbles in the Library of Trinity College, Cambridge. I verified the reading of the first line given by Dobree (Appendix to Rose's Inscriptiones Graecae), and adopted by Bockh, Appendix l. c. To the text of the decree there is therefore nothing to add, and it will suffice to append a copy of it in cursive. But I hope to show that the decree is from Halikarnassos, and to identify the revolution of Troezen to which it alludes.