Cum ab harena praeter trullissationem non minus tribus coriis fuerit deformatum, tunc e marmore graneo derectiones sunt subigendae, dum ita materies temperetur, uti, cum subigatur, non haereat ad rutrum, sed purum ferrum e mortario liberetur.
When in addition to the rough-cast, not less than three coats of sand have been laid, then coats of powdered marble are to be worked up, and the mortar is to be so mixed, that when it is worked up it does not adhere to the trowel, but the iron comes clean from the mortar.
final_alignments\Vitruvius_Architecture_Book_7.json