These five short tracts complete Andreaes ideas on religious and social reform. The ›Invitationes‹ and the ›Dextera Amoris Porrecta‹ outline an allegorical-spiritualistic theology of love, in accordance with Johann Arndt, and include ideas from the Rosicrucian texts (cf. Vol. 3) for the establishment of an elitist society to promote religious reforms. The short text ›Imago‹ focuses on the other hand on a reform of all scientific disciplines. What is remarkable is the emphasis on its encyclopedic context and the precise references to the implementation and the organization of research. The ›Unionis Specimen‹ is part of the history of pietism. This is a manifesto for a union of reform-oriented Protestant theologians which – presumably as the only one of Andreae’s projects – actually did exist.