1912至1913年江瀚擔任京師圖書館館長時期，館方編過兩部《京師圖書館善本簡明書目》。長久以來學者將二者混為一談，認為兩部書目都是江瀚所編，統稱為「江目」。兩部書目現存有四種版本，分藏中國國家圖書館與日本慶應義塾大學斯道文庫。通過調查現存版本及對照文獻記載，可以證實江瀚時期所編《簡明書目》有簡本、繁本兩種。其中簡本書目應為館員王懋鎔所編，而繁本書目是江瀚以簡本書目為底本，依據繆荃孫《清學部圖書館善本書目》批改重編而成。文中並鉤沉王懋鎔生平，補敘王懋鎔編纂善本書目的一段館史。

During Jiang Han’s (江瀚) tenure as director of the Jing Shi Library from 1912 to 1913, the library compiled two “Jing Shi Tu Shu Guan Shan Ben Jian Ming Shu Mu (京師圖書館善本簡明書 目).” For a long time, scholars have confused the two versions, believing that they were both compiled by Jiang Han and collectively referred to as “Jiang Mu” (“Jiang’s Version”; 江目). Nowadays the two bibliographies exist in four editions, in the National Library of China in Beijing and in the Keio Institute of Oriental Classics in Japan respectively. Via a survey of the extant editions and a comparison of the documentary records, it can be confirmed that the “Jian Ming Shu Mu” compiled during Jiang Han’s tenure exists in two types: a simplified version and a comprehensive version. The simplified version was compiled by Wang Mao-Rong (王懋鎔), a librarian, while the comprehensive version was compiled by Jiang Han using the simplified version as a base and reworking it according to Miao Quan-Sun’s (繆荃孫) “Qing Xue Bu Tu Shu Guan Shan Ben Shu Mu (清學部圖書館善本 書目).” The article also briefly describes the biographical data of Wang Mao-Rong and provides a historical account of his compilation of the Jian Ming Shu Mu.