《四库全书总目》子部术数类著录《发微论》一卷,署“宋蔡元定撰”。馆臣所撰提要曰:《地理大全》亦载此书,题曰蔡牧堂撰。考元定父发自号牧堂老人,则其书当出自发手。或后人误属之元定,亦未可知。然勘核诸本,题元定撰者为多,今故仍以元定之名著于录焉。“今案明万历年间建阳蔡氏之嗣孙蔡有(?)辑刻蔡氏九儒之著作为《蔡氏九儒书》,其中《牧堂公集》收录了《地理发微》,与四库全书中的《发微论》为同一书。《牧堂公集》附录宋詹体仁《蔡牧堂公墓表》,称蔡发著《地理发微》、《天文星 ”Sikuquanshuzongmu“ sub-type of surgery described the number of ”hair micro“ volume, Department ”Song Caiyuan Dingzhuan “. Museum cited by the chief executive said: ”Geographical Encyclopedia“ also contains this book, title said Cai Mu Tang. Test Yuan Ding fat father from the Church, then the book when it comes from the hair. Or the descendants of the yuan set, it is unknown. However, there are still many problems in the investigation of this book. For this reason, it is still recorded in the name of Yuan Ding. ”This case Ming Wanli years Tsai Yang Tsai’s monarch (?) Series engraved Chusei nine Confucianism as“ Chua nine Confucian scholar, ”“ which contains the ” The book “hair micro theory” is the same book. “” “Prairie public” Appendices Song Zhan body Ren “Cai Mu Tang cemetery table,” said Cai with “geography hair micro”, "astronomy star