SYNTAGMA L CAPUT I. 5 Si arcus valde magnarum diametrorum defiderantur , veluti 50. 60. aut etiam loo. pedum, una pertica non fufficiet, fed plures invicem exade commit- Ti debent, & fuppolitis infra tigillis vel aderculis G H A1K ita fuftentan, ne quic quam incurventur, utapparet in %ura 2. In…
Optics, Geometrical · Optical instruments
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