1 3 0 D O C S . 1 5 1 , 1 5 2 O C T O B E R 1 9 1 9
Did I tell you about my purported discovery of eka-iodine on plates by Siegbahn,
as an admixture of bromine? It turned out to be a mistake; a still not completely
clarified devilish trick was
151. To Pauline Einstein
Leyden, Sunday. [26 October
Dear Mother,
I’ve been here with Ehrenfest in Leyden for a week already and am having a nice
time. The weather has been fine throughout, which we made ample use of by going
on walks. In the evenings we play music. Of course there is much talk about science
as well. Yesterday I attended the meeting at the Academy with Ehrenfest and
Lorentz, where Lorentz spoke about general relativity and the results of the English
—to please me, of course. The result is now definite and signifies a
perfect verification of my
I am very happy that at last it seems possible that you can be brought to us now,
Though we can’t attend to you materially as completely as is possible
at the sanatorium in
it will still be nicer for you, because we can all be
with you often. Else will arrange it all very well; nor does she leave us without at-
tention. At any rate, it is a good sign that your doctor has no more doubts about al-
lowing the
Next Sunday I am coming back to Berlin, only to depart again on Nov. 12th aga
for a few days to
But then I’m done with it for some time.
Hoping to see you soon in Berlin in good spirits, I am with best regards yours,
Best regards to the nurse, Mrs. Dann, Maja,
152. From Max von Laue
Würzburg, 27 October 1919
Dear Einstein,
From my last
you will have gathered that I was not yet completely fa-
miliar with the literature on the Harress experiment when I wrote it. Just three days
ago, Prof. Knopf, with whom I have been exchanging correspondence about this
experiment for months now, mentioned the publications by Harzer and you in
the Astronomische
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