"Dr. Madaus published the result of his research on a medicinal sterilization (both articles are enclosed). Reading these articles, the immense importance of this drug in the present fight of our people occurred to me. If, on the basis of this research, it were possible to produce a drug which, after a relatively short time, effects an imperceptible sterilization on human beings, then we would have a new powerful weapon at our disposal. The thought alone that the 3 million Bolsheviks, at present German prisoners, could be sterilized so that they could be used as laborers but be prevented from reproduction, opens the most far-reaching perspectives.

"Madaus found that the sap of the Schweigrohr (caladium seguinum) when taken by mouth or given as injection to male but also to female animals, after a certain time produces permanent sterility. The illustrations accompanying the scientific article are convincing.

If my ideas meet your approval the following course should be taken:

1. Dr. Madaus must not publish any more such articles. (The enemy listens!)

2. Multiplying the plant (easily cultivated in greenhouses!)

3. Immediate research on human beings (criminals!) in order to determine the dose and length of the treatment.

4. Quick research of the constitutional formula of the effective chemical substance in order to

5. produce it synthetically if possible.

"As German physician and Chief Physician of the Reserves of the German Wehrmacht, retired (d.R.a.D.), I undertake to keep secret the purpose as suggested by me in this letter.
"Heil Hitler!
[Signed] "Dr. Pokorny
"Specialist for skin and venereal diseases.
"Komotau, October 1941."