Jo-yu Peru Dear Editor: In "Stories About Chinese Herbal Medicine" in the June 1992 issue, you mentioned that Cinnabar contains mercury and yet is sweet and nontoxicin nature.
秘魯若愚編輯先生：貴刊八十一年六月號「中國草藥故事」專欄，提及朱砂成分含水銀等，藥性味甘無毒。