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Mongiardini Exercitationis mathematicae de physico radiorum luminis parallelismo .tif Book Mongiardini Lazzaro Exercitationis mathematicae de physico radiorum luminis parallelismo ex typographia Francisci Mocke Florentiae lat it Exercitationis mathematicae de physico radiorum luminis parallelismo pars altera ex qua propositiones