icas in plano Horizon¬ tali delineauimus hoc primo modo; quod luit demonilrandum. JDemonftratio fecunda defcriptionis . SlfernicirculusBDC effet ipfius Horizontis femicirculus feptentrio- nalis ( feptentrionalis dico, quia D leptentrionem relpicit, A vero auf- trum per z i huius ) arcus eiusD E, &D… … SEPTENTRIO arcus intercepti inter communem Horizontis, & Meridiani lectionenn. (quaef.tppomtur elfe AD ) ac fingulas communes eiufdem Horizontis, &t circu-
Sundials -- Early works to 1800 · Horology -- Early works to 1800 · Perspective -- Early works to 1800 · Horology · Perspective · Sundials
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![An illustration from Recreations in science and natural philosophy: Dr. Hutton's translation of Montucla's edition of Ozanam [electronic resource] (1844)](https://img.insideoutlibrary.com/img/200/ia-b21307507-530-0.webp)
![An illustration from Mundus subterraneus, in XII libros digestus : qvo divinum subterrestris mundi opificium, mira ergasteriorum naturae in eo distributio, verbo [pantamorphon] Protei regnum, universae denique naturae majestas & divitiae summa rerum varietate exponuntur, abditorum effectuum causae acri indagine inquistae demonstrantur, cognitae per artis & naturae conjugium ad humanae vitae necessarium usum vario experimentorum apparata, necnon novo modo & ratione applicantur. Ad Alexandrum VII. pont. opt. max. (1678)](https://img.insideoutlibrary.com/img/200/ia-mundussubterrane02kirc-64-74.webp)
