The size of both items is 6 x 9 inches, both are soft cover with 56 and 20 very interesting pages. One was written from Dieter Gerhardt and printed from the Lehmanns Verlag in Munich, the other publication was written from Prof. Dr. Med. Fetscher and printed from the Duerrschen Buchhandlung in Leipzig. Both were published in 1933, shortly after the Nazis took over and established their racial laws which made the purity of blood and race so important for the future hail of the German Reich! One of the two was especially published for teachers at public schools, so that they knew what and how they had to teach their pupils about this subject and what misfortune "lower grade" blood like the Jewish blood will cause in the future of the German Reich. Other important subjects in these publications are the birth rates, the "damage" hereditary diseases mean to the population, etc.!

All in all very interesting historical early Third Reich racial studies material!