[ 4 l 9 ] 
Fonder opus far , magifque etiamnum triticum. And 
a little further on, ex his generibus tfrumenti fti- 
licet } qua Romam invehuntur , levijftmum eft Galli - 
cum , atque e Cher fine fo advettum : quippe non ex - 
cedunt in modiurn vicenas libras , ft quis granum 
ipfum ponder et. Adjicit Sardum fell bras, A lex an - 
drinum et trientes : hoc et Siculi pondus. Boeoticum 
tot am libram addit : Africum et dodr antes. In 
Tranfpadand Italia fcio vicenas quinas libras f arris 
modios pender e : circa Clufium et finas. And the fame 
author in his xxxiii. book, fpeaking of quickfilver, 
obferves that it is the heaviefl: of all fubftances, gold 
only excepted. Omnia ei innatant, prater aurum: 
id imiim ad Je trahit. Which Vitruvius had aifo 
taken notice of, and had mentioned beftdes the weight 
of a known meafure of it, that of four Roman Sex- 
tar ii. Ea autem Igutta nempe argent ivivi qua inter 
fe congruunt et una confunduntur] cum fint quatuor 
fextariorum men fur a, cum expenduntur , inveniuntur 
effe pondo centum. Cum in aliquo vafe eft confu- 
fum , ft fupra id lapidis centenarii pondus imponitur, 
natat in fummo: neque eum liquor em pot eft onere 
fuo premere , nec eliaere , nec dijftpare : centenario 
fublato, [i ibi auri fcrupulum imponatur , non natabit , 
fed ad imum per fe deprime tur , It a non amplitu- 
dine ponder is, fed genere (ingularum rerum gravita- 
tem ejfe , non eft negandum. Archit. 1. vii. c. 8. 
Again, Q. Rhemnius Eannius Falamon , in his 
fragment F)e ponderibus et menfuris , has given us 
an obfervation, of the proportional gravities of 
Water, Oil, and Honey. 
Libra 
