mech p.61 Rarefactio...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/18239 <http://www.w3.org/nl/lemon/frac#Attestation>
mech p.61 Rarefactio...
mech p.61 Rarefactionem ingentes suppeditare vires ... ad hydro-pnevmatica omnis generis technasmata molienda. == math praef Varia deinde technasmata, ex dictis principiis constructa, in medium proferentur