This basic cosmobiology textbook was first printed in Germany (1949) under the title The 90° Dial in Practice. It has since had additions and improvements. Written by the acknowledged master, cosmobiology takes the fundamentals of the basic horoscope one step further by condensing the wheel to 90° by placing the planets into their groups of cardinal, fixed and mutable. The analysis then becomes very simplified, yet with details that are astounding. Explained are the methods, interpretations, use of solar arc directions, graphic ephemeris and more. See for yourself how using cosmobiology makes astrology become a quicker and more useful tool.