A History of Magic and Experimental Science, Volume 1 (of 2) / During the First Thirteen Centuries of Our Era

by Lynn Thorndike

Cotton Caligula A, XV, written mostly in Gaul before 1000 A. D., fol. 126, a list of lucky and unlucky days for medical purposes, in Anglo-Saxon.

Cotton Titus D, XXVI, 10th century, fol. 3v.

Cotton Vitellius A, XII, fol. 39v.

Cotton Vitellius C, VIII, in Anglo-Saxon, fol. 23, de tribus anni diebus Aegyptiacis.

CU Trinity 945, early 11th century, fol. 37.

CU Trinity 1369, 11th century (perhaps 1086 A. D.), fol. 1v.

Vatican 644, 10-11th century, fol. 77r, versus duodecim de diebus aegyptiis, and a fragment “de tribus diebus aegyptiis.”

Dijon 448, 10-12th century, fol. 88, Calendrier, avec jours égyptiaques ajoutés; fol. 191, “De Egyptiacis diebus.” Bede’s De temporibus and De natura rerum occur twice in this MS and at fol. 181 is an incantation for use in fevers.

Harleian 1585 and Sloane 1975, where the Egyptian days are found with the Herbarium of Apuleius, are both 12th century but probably copied from earlier MSS.

So in Chalons-sur-Marne 7, 13th century, fol. 41, verses on the Egyptian days occur with the Ars calculatoria of Helpericus of Auxerre who wrote in the ninth century.