IT is difficult to say when the first pharmacopoeia was published. The first edition of the Chinese Materia Medica is said to have been prepared about 3000 B.C. by the emperor Shen Nung. The Ebers Papyrus was written about 1500 B.C. Books on materia medica were written by Theophrastus (380-286 B.C.), Scribonius Largus (A.D. 45), Dioscorides (c. A.D. 60), Galen (A.D. 130-200) and many others. It is sometimes said that the first real pharmacopoeia was the “Nuovo Receptario Composito”, which was made official in Florence in 1498, or the book prepared by Valerius Cordus which was adopted officially by Nuremburg (1546), or that prepared by Adolph Occo (1564) which was actually called a pharmacopoeia and was made official in Augsburg in 1613. Pharmacopoeia Londinensis of 1618 Reproduced in facsimile, with a Historical Introduction by George Urdang. (Hollister Pharmaceutical Library, No. 2.) Pp. ix + 299. (Madison, Wis.: State Historical Society of Wisconsin ; New York: Schuman's, 1944.) 12 dollars.