Volume 1) A very early edition of Mesue’s pharmacological writings. Mesue’s work was the text-book of pharmacy in the West and Mesue was for centuries the authority on the composition of medicaments. The book was not only in use in practically every European pharmacy but in addition became the basis of the later official pharmacopoeias. Volume 2) Complementum - Franciscus Pedemontanus. Volume 3) Antidotarium, Quid pro quo, Synonyma - Nicolaus Salernitanus. Also known as the Grabadin it was considered by Sudhoff “the pharmacological quintessence of Arabian therapeutics” and contains the entire armamentarium of compounded medicines which we owe to the Arabians. The medicines are arranged by form e.g. confections, juleps, syrups together with instruction for preparation and notes on their medical uses. Volume 4) Liber servitoris de praeparatione medicinarum simplicium – Abulcasis.