Alis dextra ac sinistra latitudinis, cum sit atrii longitudo ab xxx pedibus ad pedes xl, ex tertia parte eius constituatur.
The width of the alae or wings, on the right and the left, is to be one-third of the length of the atrium when it is from 30 to 40 feet;
final_alignments\Vitruvius_Architecture_Book_6.json