monumenta.ch > Hrabanus Maurus > sectio 7 > csg248.134 > sectio 12 > sectio 10 > sectio 13 > sectio 57 > bmv343.267 > bnf7296.27 > sectio 2 > sectio 22 > uldLIP7.214 > sectio 35 > sbbMs.Phill.1698.30 > sectio 96 > sectio 18 > sectio 25 > bmv343.172 > sectio 200 > sectio 7 > sectio 93 > bnf7296.68 > bnfNAL1615.252 > sectio 8 > sectio 25 > sectio 64 > bnfNAL1615.143 > 6 > sectio 19 > habCod.Guelf.79Weiss..113 > bnf7296.22 > sectio 49 > sectio 21 > bavPal.lat.311.221 > bnfNAL1615.120 > 16 > sectio 21 > csg250.187 > bnf7296.13 > sectio 50 > Matthaeus, 6 > bmv343.190 > habCod.Guelf.14.15Aug.4°.91 > sectio 76 > csg250.198 > 264 > bkeCod.15.42v > bavPal.lat.1449.69 > bkeCod.15.113v > csg248.127 > csg250.305 > sluMscr.Dresd.A.145.b.189 > bsbClm17134.60 > bnf6795.124 > sectio 88 > Hieronymus, Epistulae, 2, 28 > bavPal.lat.1449.98 > bavPal.lat.1449.189 > sectio 138 > bnfNAL1615.64 > sectio 52 > sectio 25 > sectio 4 > bavPal.lat.1449.136 > sectio 7 > bnf6795.118 > sectio 53 > bkeCod.15.115v > csg250.330 > bavPal.lat.1449.174 > csg250.269 > bkeCod.15.148r > sectio > sectio 40 > bavPal.lat.1449.101 > bnf6795.119 > bnfNAL1615.71 > csg248.169 > bkeCod.15.93v

Beda Venerabilis Beda Venerabilis, De Temporum Ratione, 16, 6
Si autem quaeris bessis quid significet, et in principiis huius opusculi de calculis diximus, et hunc breviter repetimus. Tanto minus est bessis ab integra hora, quantum VIII a XII, XX a XXX, X a XV; tertia enim parte subtracta, quoties duae solum remanent, ipsae duae partes bessis, ipsa tertia triens nuncupatur. Errant ergo qui lunam tricenis diebus tantum spatii coelestis, quantum CCCLX et V solem percurrere dicunt, cum manifesta veritas prodat quod et supra perstrinximus, lunam XXVII diebus et tertia diei parte tantum conficere cursum, quantum CCCLXV diebus et quarta diei parte constat conficere solem, et quantum spatii in uno suo mense lunam, tantum in tredecim suis solis explere circuitum.

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