The word "pharmacopoeia" has come to have many meanings, although it is commonly understood to be a book describing approved compositions and standards for drugs. In 1813 the Royal College of Physicians of London considered a proposal to develop an imperial British pharmacopoeia - at a time when separate official pharmacopoeias existed for England, Scotland, and Ireland. A unified British pharmacopoeia was published in 1864, and by 1914 it was considered...