11. The change occurred with the fourth edition of the British Pharmacopoeia in 1898. 12. It is recognized by the World Health Organization as the official Chinese pharmacopoeia . 13. The British Pharmacopoeia Commission approved the name in 1970. 14. Pringle recommended a completely alphabetised arrangement of the Pharmacopoeia . 15. In 2000, the European Pharmacopoeia introduced pesticide residue limits into its lanolin monograph. 16. Yellow dock is part of the homeopathic pharmacopoeia . 17. The solubility classification is based on a United States Pharmacopoeia ( USP ) aperture. 18. Balfour and Sibbald were also key figures in the creation of the Edinburgh Pharmacopoeia . 19. At least 7, 000 medical compounds in the modern pharmacopoeia are derived from plants. 20. Under his supervision the 9th and 10th editions of the National Soviet pharmacopoeia were published.