Onerum vero maxima pondera, cum feruntur a phalangariis hexaphoris et tetraphoris, examinantur per ipsa media centra phalangarum, uti in diviso oneris solido pondere certa quadam divisionis ratione aequas partis collis singuli ferant operarii.
Again, when very heavy loads are carried by gangs of four or six porters, they are balanced exactly in the middle of the carrying-poles, so that the undivided solid weight is shared in a definite proportion, and each labourer carries an equal part of the load on his neck.
final_alignments\Vitruvius_Architecture_Book_10.json