“To Prof. Dr. Rose
“Berlin, Fohrerstrasse 2
“Robert Koch Institute
“Dear Colleague:
“I inoculated a person intracutaneously with sporocoides from the salivary glands of a female anopheles you sent me. For the second inoculation I do not have the sporocoides material because I do not possess the Strain Rose in the anopheles yet. If you could find it possible to send me a few anopheles infected with Strain Rose during the next few days (in the last consignment 2 out of 10 mosquitoes were infected), I would be able to continue this experiment and I would naturally be very grateful to you for this new support of my work.
“The mosquito breeding and the experiments are proceeding satisfactorily; I am working now on six tertiary strains. I remain with hearty greetings and
“Heil Hitler!
“Yours truly
“[Signed] Claus Schilling”
Q. Schilling apparently thought there was a “Strain Rose.”