D O C U M E N T 9 0 M A R C H 1 9 2 2 1 0 5
be left to you to set their number, depending on the nature of your lecture topic and
on your personal preference. I confine myself to suggesting, as a simple indicator,
that it could range from between 3 and 5. In accordance with the wish you
expressed to Mr.
they would take place before a restricted audience
composed of specially invited experts, mathematicians, physicists, or
They could, if you deem it appropriate, lead some discussions. The
compensation allotted by vote of the assembly to the speaker is 5,000 francs.
I would be obliged if you would kindly indicate to me in your reply the general
title under which the issues addressed in these talks are to be grouped and precisely
on which date they will commence. We need this for the letters of invitation that we
shall have to send out.
It is a my duty to append to this invitation my colleagues’ gratitude along with
my own. The Collège de France has always had the honor of welcoming those who
contribute to progress in science and who open new paths to the endeavors of the
human intellect. The universal opinion of the most qualified scholars counts you
among these masters of contemporary thought. We should be pleased if for a few
days you would occupy one of our chairs.
With high regards,
Administrator of the Collège de France,
89. To Max Hirschfeld
Berlin, 17 March 
[Not selected for translation.]
90. To Paul Winteler and Maja Winteler-Einstein
Berlin, 17 March 1922
Dear Pauli and dear Sister,
With dismay I gathered from the
[. . .].
I’m going to Paris on 28 Mar. to deliver some lectures at the Collège de France
and in the fall to Japan and China. Maybe I’ll take Else along.