Page:Organum mathematicum libris IX. explicatum (1668).djvu/409

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LIBER QUARTUS CHRONOLOGICUS,

In quo explicatur
LOCULAMENTUM QUARTUM ORGANI MATHEMATICI,
signatum littera D, et continens Tabellas
pro
COMPUTO ECCLESIASTICO;
Tedicurque uberior pro eodem
INSTRUCTIO.

PROOEMIUM


CHronologia, seu temporum Scientia, trimembris statui potest, pro triplici tempore, quod considerandum sibi assumit, Astronomico videlicet, Politico, et Ecclesiastico: quodlibet enim horum distinguit in partes, ordinat in varios usus, supputatque variis modis ac regulis. Hinc varia unius cujusque membra, ut minuta, horae, dies, hebdomadae, menses, anni,