本文介绍了刘墉、周永年、吴大澂、叶昌炽的四通未刊信札原件踯铝鯄柕男攀橇私馇宕凭僦?度的第一手资料;周永致李宪暠的信是周存世信札五通之一；吴大澂致祁世长的信对了解当时清流派人物的处境和心态很在帮助;叶昌炽致刘永诗的信记录了八国联军入侵中国,义和团运动在北京的一些真实情况。 This article introduces the original materials of Liu Xun, Zhou Yongnian, Wu Da Xuan, Ye Changchi’s four-way unread journal letter, ; Wu Dalai’s letter to Qi Shichang was very helpful in understanding the current situation and mentality of the Qing dynasty; the letter from Ye Changzhi to Liu Yongshi recorded some real situations in which the Eight-Power Allied Forces invaded China and the Boxer Rebellion in Beijing.