Gushan bizhu 穀山筆麈

Gushan bizhu 穀山筆塵 "Brush whiskings from Grain Hill", also called Bizhu 筆塵, is a collection of stories with a length of 18 juan. It was compiled during the Ming period 明 (1368-1644) by Yu Shenxing 于慎行 (1545-1608), courtesy name Wuke 無可, later Wugou 無垢, or Keyuan 可遠, style Gushan 穀山 or Gufeng 穀峰. He also wrote the book Dushi manlu 讀史漫錄. His collected writings are called Gucheng Shanguan shiji 穀城山館詩集 and Gucheng Shanguan wenji 穀城山館文集.

This book was written while Yu Shenxing was living in retirement in the mountains of Gucheng. It consists of 18 juan, divided into thirty-five categories or chapters. Most of the recorded material concerns anecdotes and historical allusions from the Ming period, though it also contains miscellaneous notes. The work therefore possesses a certain value as a historical source material.

An edition printed during the Wanli reign-period 萬曆 (1573-1619) of the Ming era still exists. At the beginning of the book, there is a preface by Feng Qi 馮琦 (1558-1603) and another by Guo Yingchong 郭應寵, dated 1613. This edition comprises six juan and is currently kept in the Library of Peking University. There are also two editions printed during the Tianqi reign-period 天啟 (1621-1627). One copy bears the seals Anletang cangshu ji 安樂堂藏書記 and Mingshantang lan shuhua yinji 明善堂覽書畫印記. This edition has preface by Feng Qi, a preface by Shen Yu 沈域, and a postscript by Guo Yingchong, dated 1625. This version consists of four juan and is now housed in the Beijing Library (National Library of China). The other Tianqi edition has no owner seals. Its preface materials are the same, but it contains eight fascicles. This copy is currently housed in the Library of Congress in the United States.