DE AXE IN
PERITROCHIO.
PERITROCHIO.
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Fabricam, & conſtructionem hu
ius inſtrumenti Pappus in octauo
mathematicarum collectionum
libro docet; axemq; vocat AB,
tympanum verò CD circa idem
centrum; & ſcytalas in foramini
bus tympani EF GH & c. ita vt potentia,
ius inſtrumenti Pappus in octauo
mathematicarum collectionum
libro docet; axemq; vocat AB,
tympanum verò CD circa idem
centrum; & ſcytalas in foramini
bus tympani EF GH & c. ita vt potentia,