It was Jünger's father who earned his doctorate in Heidelberg under Victor Meyer and gifted his son the first collection box for insects. Jünger even used the breaks during World War I to expand his collection. In his "hunts," which also serve as a memoir for his father, Jünger is always both an entomologist and a writer. This is also evident in the Parerga, which include early drafts and memories of the Catholic clergyman and entomologist Adolf Horions.