Our re-trieve of the original Heideggerean problematic has achieved its finality. We have touched in sequence on the need for such a retrieve (Chs. I & II); the experience of the forgottenness of Being which such an effort must begin by re-calling (Ch. Ill); the difficulty of formalizing this experience in a definite question serving to guide further inquiry (Ch. IV); the double set of considerations necessary to analytically adequate the ontic-ontological structure of Dasein presented in Sein und Zeit (Chs. V & VI) — pointing out with some care (Ch. VII) that the contribution of Heideggerean thought to the progress of philosophy stems principally from thematizing the dimension of Dasein which gives the notion its "objectively scientific priority"; the priority of the phenomenological Seinsfrage as a presuppositioned priority, inasmuch as it is essentially involved with the Da des Seins, to that extent dependent on a consideration of whatever the notion of Dasein itself can be shown to structurally presuppose, — or, more exactly, structurally imply (Ch. VIII); the discovery of Phenomenology as the philosophical attitude alone proportioned preclusively to the thought of Being (Ch. IX); a means of testing philosophically the integrity of our understanding of the inner élan of Heidegger's thought (Ch. X); and finally, we were able through this programmatic development to locate within the perspectives of Thomistic thought the proper sense of Heidegger's reinterpretation of the question of Being.