Note E355 — 57.
Reading edition
"The two S. Maries daies," i.e. July 22nd, St. Mary Magdalene's Day, and August 15th, the feast of the Assumption of the Virgin Mary.—M. Mr. Skeat suggests that the days meant are August 15th and September 8th, the Nativity of the Virgin Mary.
There is no doubt Mr. Skeat is right; compare "Centory must be gotten betweene our Lady dayes."—Langham's Garden of Health. The date is not uncommon in Herbals.—Note by Mr. J. Britten, F.L.S.