Heinichen, followed by Closs, reads τοὺς μὲν…τοὺς δέ: “Some of them he supports by pillars…others of them he illumines by windows.” But all the mss. read τοὺς μὲn…τοῖς δὲ, which, in view of the general character of Eusebius’ style throughout this oration, we are hardly justified in changing. I have therefore followed Valesius, Burton, and Crusè in retaining the reading of the mss.