What is the fine-grained topic of the following text: Towards the end of his career, he donated part of his collection of artifacts to the Musée de l’Homme in Paris, and sold many pieces he collected personally in the New Hebrides to other institutions such as the Geneva Ethnographic Museum, or to fellow scholars and collectors such as Felix Speiser from Basel in 1946. Only return the topic.
Donation and sale of a personal artifact collection