C. Plinius Caecilius
Etiam tum tamen nubilo incertae fuere horae usque ad proximum lustrum; tunc Scipio Nasica collega Laenatis primus aqua divisit horas aeque noctium ac dierum, idque horologium sub tecto dicavit anno urbis DXCV:
Even then however the hours were uncertain in cloudy weather, until the next lustrum, when Scipio Nasica the colleague of Laenas instituted the first water-clock dividing the hours of the nights and the days equally, and dedicated this time-piece in a roofed building, B.C. 159.
Reprinted by permission of the publishers and the Trustees of the Loeb Classical Library from C. Plinius Caecilius: Natural History (Volume II. Books 3-7), Loeb Classical Library Vol. 352, translated by H. Rackham, Cambridge, Mass.: Harvard University Press, © 1942, by the President and Fellows of Harvard College. The Loeb Classical Library ® is a registered trademark of the President and Fellows of Harvard College.