The first chapter of Husserl's Ideas III ¹ is devoted to some problems relating to "The Different Regions of Reality." Husserl begins with a reference to the phenomenological investigations into constitution already carried out in Ideas II ², and claims that the practice there of "our phenomenological-kinetic method"³ enabled him to ascertain "the fundamental distinction among merely material thing, animate organism, and psyche, or psychic Ego, which dominates all apprehension of the world" (V: 1/">1). He says that he has shown the "phenomenological primal sources" of the distinction among "thing" (Ding),"Body" (Leib),and "psyche" (Seele), and thus that he has grounded or justified it.