What roman author described the technique of Opus quadratum?
Opus quadratum Opus quadratum is an ancient Roman construction technique, in which squared blocks of stone of the same height were set in parallel courses, most often without the use of mortar. The Latin author Vitruvius describes the technique.
Juventinus Albius Ovidius Juventinus Albius Ovidius was the name of the author of thirty-five distichs titled "Elegia de Philomela", containing a collection of those words which are supposed to express appropriately the sounds uttered by birds, quadrupeds, and other animals. For example: