Huygens-Con ep 3184 ...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/22074 <http://www.w3.org/nl/lemon/frac#Attestation>
Huygens-Con ep 3184 ...
Huygens-Con ep 3184 (1643) Motum Lunae, sive in summo Apogaeo decurrat, sive in imo Perigaeo, semper depraehendi a me oscillatorium.