Abstract
This paper has examined and made formal analysis of the sketches included in the 5th chapter of “Alpine Architektur”, especially the sketch titled “Grottenstern”, by Bruno Taut, and has clarified that its ornamental forms were composed of the historical forms, vegetable forms and crystal forms which are collected and unified into an utopian figure. It is also found how the cosmic ideas of an expressionistic novelist Paul Scheerbart were put into concrete forms and various formal elements and the expressionistic construction were generated by Bruno Taut.
