《探径集》主要选收美国史学史、美国外交政策史和有关历史研究与教学的文章。这都是在漭漭史林中,循着小径,探索前进的足迹。解放前那些关于国际时事评论的文章未收。解放后,主要精力花在多头教学任务和没完没了的开会与“运动”中。坐下来,全力搞科研始于1964年。在那年,美国史研究 The “Pathfinder” mainly chooses the history of American history, the history of American foreign policy and articles about historical research and teaching. This is all in the grubby history, follow the footpath, to explore the footprints of progress. The articles on international affairs before the liberation were not received. After the liberation, the main energy spent on long teaching tasks and endless meetings and “movement”. Sit down, engage in scientific research began in 1964. In that year, American history studies