Guilielmi Blaeu Institutio astronomica de usu globorum & sphaerarum caelestium ac terrestrium: : duabus partibus adornata, una, secundum hypothesin Ptolemaei, per terram quiescentem. Altera, juxta mentem N. Copernici, per terram mobilem. (1652)
Blaeu, Willem Janszoon, 1571-1638 · Amstelaedami, : Apud Ioannem Blaeu. · leaf 256
DE V S V S P.H iERARVM LIX. PROBLEMA. Verticalia declinantia k meridie depingere, AD defcribendura exempli caufa horologium fcio- tericum Amftelodami , in muro declinante grad. abauftro in occidentem ; duc ineo lineam hori¬ zonti parallelam , ut in fchemate D A B, & ex A fe- micirculum D C B… … perpendicularem AC, quas refert horam 12. Hori- zontem difpone ad latitudinem Amftelodamenfem,& verticalem unum in occidentali parte horizontis col¬ loca in <>rad. 3^ ab occidente in boream , alterum in grad. ab oriente ad auftrum , meridianum fub Co- furo folftitiorum , indicemque in hora 12. Hinc…
Globes · Sundials · Imprint 1652
Internet Archive · John Carter Brown Library · Public domain (published before 1931). Free to use for anything.
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