Abstract
In time for his 55th birthday, on September 6th 1923, Hägerström and his wife Esther moved for their last time, settling in Floragatan, on the outskirts of town. This small house hosted the smoky studio and library room where he spent most of his remaining days, working on two immense tasks that only death could keep him from finishing. The first task was his overwhelming study on Roman law, and more specifically on the genesis of judicial notions such as obligation, duties, rights, and property.