Amazon’s store gives this description of an influential book by German philosopher/theologian/psychologist, von Schubert:

Die Geschichte der Seele (Cambridge Library Collection), German Edition
“This is the fourth, revised and expanded 1850 edition of an influential two-volume work originally published in 1830 by the German scientist and philosopher Gotthilf Heinrich von Schubert (1780–1860). Schubert studied theology and medicine, and taught natural history at Erlangen and Munich, specialising in botany, forestry and mineralogy. He also lectured on topics including animal magnetism, clairvoyance and dreams, and attempted to reconcile Enlightenment philosophy with Christian faith. This book sets out Schubert’s views on human nature as body, soul and spirit, and on humankind’s place in the natural order. Volume 2 focuses mainly on the ‘soul’, which Schubert differentiates from the ‘spirit’ that clothes and feeds it… Schubert refers frequently to Classical and early Christian philosophers as he probes phenomena now assigned to psychology, including cognition and discernment.”

Wikipedia notes,

“Schubert aimed to create a religiously-grounded interpretation of the cosmos .… Schubert advocated an ecumenical “awakened Christianity” which found evidence for God both in Nature and in the human soul. Synthesising the Bible with the philosophy of Schelling, he was a major figure in the “later Enlightenment”. In his History of the Soul (1830), Schubert again attempted to fuse the philosophy of Herder and Schelling with the Christian tradition.”

The significance of von Schubert’s writings in this blog is to observe how trichotomy was a significant model of anthropology in the 1800’s.