Cosmographicus liber Petri Apiani mathematici, (1534)
Apian, Peter, 1495-1552, Gemma, Frisius, 1508-1555, Gemma, Frisius, 1508-1555. Libellus de locorum describendorum ratione · Væneu[n]t Antuerpiae : sub scuto Basilie[n]si p[er] Gregoriu[m] Bontiu[m]. · leaf 55
LIBRI COSMO. FoI.XXVL trioncm verfus porrigatur.Pofihjcc verificaquadratum doncc vmbra ftili fupcr gradum verticalcm prius eK radijs folaribus obferuatum co* incidat.Etiatus a aut oppofitum afTamitur pro vera linea meridiana. Cui adiungatur regulamentum, dC agatur linea infinitx longitudinis,… … ^ nodu pcr organum viatoriuCquod vulgo Compaffus dicitur; 6C in quouis plano diclo citiusin hunc feremoduinitenire docet, Pone igi* tur fuperplano normato Compaffumad acquidiftantia horizontis, ita qp eiusIij^guIaCquar magnetis idiotropia gerit)ll:igmaticf lingulpjncu* trorfumdeclinans…
Cosmography · Geography
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