《泉志》成书于南宋高宗十九年(1149年),距今已近900年,为现存最早的钱币学著作。作者洪遵(1120年~1174年),字景严,江西望族,与兄洪适、弟洪迈先后中博学鸿词科,有“三洪”之称。兄洪适官至宰相,为官之余,以金石学擅名;弟洪迈为翰林阁老,独擅文学,所著《容斋随笔》至今影响巨大;洪遵为宰执(副丞相),有声官场,致力于钱币学,对医学也有研究。一家三兄弟分别于不 “Quan Zhi” book was written in the Southern Song Dynasty Gaozong nineteen years (1149), nearly 900 years ago, is the earliest existing numismatics works. The author Hong Zun (1120 ~ 1174), the word King Yan, Jiangxi clan, and brother Hong appropriate, brother Hong Mai Bo has learned in the word section, there are “three Hong ” said. Brother Hong proper officer to the prime minister, more than officials, known to the gemology; brother Hong Mai Hanlinge old, unique literary, the book “Rong vegetarian essay” has a tremendous impact so far; Hung Zun as Zaizhi (deputy prime minister) , Sound officialdom, dedicated to numismatics, there are also studies of medicine. A three brothers were not