Arundel 251, 14th century, fols. 25r-35v, Expliciunt experimenta Alberti magni. This Explicit, written in enormous letters, is misplaced, as the Experiments of Albert really end at fol. 35r and fol. 35v is devoted to the twelve experiments with snake-skin translated by John Paulinus or John of Spain.

Egerton 2852, mid 14th century, fol. 67-, Experimenta Alberti.

Sloane 3564, end of 14th century, fols. 34-38, Jocalia Salamonis, is really part of our Experiments, covering twelve herbs.

Sloane 3545, 15th century, also contains a passage on twelve herbs which seems to be a portion of our Experiments.

Royal 12-B-XXV, 15th century, fol. 248r-, Incipiunt experimenta naturalia fratris Alberti que dicta sunt secreta philosophorum et primo de herbis. Text incomplete.

Sloane 351, 15th and 13th centuries, fols. 25r-38r, Incipit liber Alberti de diversis experimentis ... / ... Expliciunt experimenta Alberti.

Additional 30351, later 15th century, fol. 69-, Experimenta Alberti de herbis.

Sloane 2320, 16th century, fols. 65-69, what the catalogue describes as “De arte magicali tractatus” turns out to be Albert’s experiments with herbs.

For the contents of the treatise I have not had time to use all these MSS, but have checked the printed editions to a considerable extent by Sloane 342, 351, and 3281, Arundel 251, and Royal 12-B-XXV; and have also examined the three following Digby MSS at the Bodleian.

At Oxford and Cambridge