His Habilitationschrift (1894) concerned the concepts of the content and the object of presentations; it clarified and sharpened this important distinction.
Twardowski's main publication in the Vienna period is, next to his doctoral dissertation Idea and Perception (1891), his Habilitationsschrift, On the Content and Object of Presentations (1894), Twardowski's most influential work.
His main work, On the Content and Object of Presentations (1894), established the need for the distinction between the content and the object of a presentation within Brentanian theories of the intentionality of mental acts.
So the Son of God used manhood for his self-manifestation, and manhood was, therefore, included in his prosōpon, so that he was a single object of presentation.
7. The formal parts are in any case inseparable parts of the object of presentation: they are merely distinguishable in it.
By contrast, the objects of presentations are intuitively present, i.e., they stay "in front of" the subject as in perception, imagination, presentification, etc., and therefore can stretch in time.
Aesthetic objects aren't presentations, however, for that would invite not just an uncontrollable population explosion of aesthetic objects, but chaos in criticism; and neither are aesthetic objects classes of presentations, for aesthetic objects must have at least some perceptual properties, but classes, as abstract entities, have none.
When one does so, one should keep in mind however that these concepts do not properly pick out objects of presentation.
The object presented in the modifying sense is identical with the content presented in the attributive sense: it is dependent on the act of presentation, and it is what we mean by 'the object immanent in the act'; the object presented in the attributive sense is the object of the presentation, what happens to be presented in a presentation, and what is independent of the act of presentation.
The psychological content of a presentation is something immanent, but it is usually not an immanent object in the sense of both being the object of the presentation and also existing inside the presentation.
This special case is the case in which the content of some presentation plays the role of the object of another presentation.
