VSVS ANNVLI ASTR, verfus rem metiendam,donec rurfus ea-dem pinnuljt bafi fiue infi- mx parti refpondeant . Quantum igitur eft fpatium ab hoc loco itationis ad priorem^tanta eft longitudo rei menfurata-. … q Diflanriac dimenfio. Cap .XIX. Vemadmodu autemin altitudjnibus omnino opus eft aliqua cognitionc diftantic,ita ediuerfo in diftantiarum dinicnfionibus cognitio altitudinis neceffaria eft , Qiia pra-cognita (oportet enim ex eleuation loco diftantias metiri) Annulum ita fufpcndito ex: manu,vt…
Cosmography · Geography
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