Blaeu inst astr p.34...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/31167 <http://www.w3.org/nl/lemon/frac#Attestation>
Blaeu inst astr p.34...
Blaeu inst astr p.34 Elevationem Poli inquirere per stellas circumpolares.