This chapter proposes an analysis of Hedwig Conrad-Martius’s (1888–1966) On the Ontology and Doctrine of Appearance of the Real External World (1916) from the perspective of Husserl’s theory of whole and parts in the Logical Investigations. The author identifies the “whole” with “sensory-givenness” and “parts” with “feeling-givenness” and “givenness of appearance.” The dependent-independent relations and laws that prescribe unity of objects in Husserl are also foundational in Hedwig Conrad-Martius’ early ontology. This is divided between two forces: the search for an essential whole, independent of senses, to explain “reality as such”; and the involvement of senses in the external world’s appearing.