There were 3 English-Chinese edited by Scottish missionaries to help missionary learning local language. Those are: 1. Chinese–English Dictionary of the Vernacular or Spoken Language of Amoy – By Reverent Carstairs Douglas, 1873 published. 2. A Dictionary of Amoy Vernacular spoken throughout the prefectures of Chin-chiu, Chiang-chiu and Formosa, by Reverend William Campbell, 1913 published. 3. Supplement to Dictionary of the Vernacular or Spoken Language of Amoy, by Reverend Thomas Barclay, 1923 published.