Igitur cum id habemus certum animo sustinentes, ab labro, quod est in regione septentrionali, linea traiecta ad id, quod est supra meridianum axem, ab eoque altera obliqua in altitudinem ad summum cardinem, qui est post stellas septentrionum, sine dubitatione animadvertemus ex eo esse schema trigonii mundo, uti organi, quam sambucen Graeci dicunt.
Therefore when we have kept this fixed in our mind, let a line be drawn from the margin which is in the north to the margin which is towards the south, and from the latter a second line inclined upwards to the pole which is behind the stars of the Great Bear. From this we shall undoubtedly perceive that the world has a triangular lay-out, like the sackbut which the Greeks call sambuc.
final_alignments\Vitruvius_Architecture_Book_6.json