Hoc autem ita videtur naturaliter fieri, quod in is locis et ea terra, quibus is nascitur, sucus subest coaguli naturae similis; deinde cum commixta vis egreditur per fontes extra terram, a solis et aeris calore cogitur congelari, ut etiam in areis salinarum videtur.
The cause of this seems to be natural, in that in these places and in the soil where this happens there is a fluid like the nature of rennet; thereupon when this potency is blended and comes above ground in the springs, it is solidified by the heat of the sun and air, as appears in salt pits.
final_alignments\Vitruvius_Architecture_Book_8.json