[415] A.U.C. 830.
[416] Twenty-seventh of January.
[417] Ad solis cursum.
[418] Soon after the corrections made by order of Julius Cæsar, the Pontifices mistook the proper method of intercalation, by making it every third year instead of the fourth; the consequence of which was, that Augustus was obliged to correct the results of their error by omitting the intercalary day for twelve years.
[419] He most probably refers to the list of writers originally appended to the First Book; but which in the present Translation is distributed at the end of each Book. For the list of astronomical writers here referred to, see the end of the [present Book].
[420] Or Ἀστρικὴ βίβλος. It is now lost.
[421] In his work mentioned at the end of this Book. It is now lost.
[422] I. e. Asia Minor.
[423] I. e. the north-west parts of Africa.
[424] See c. 39 of that Book.