Prof, and Mrs Louis Green,
Haverford College,
Haverford Pa,
USA
Dear llr and Mrs Green,
VSe often think of the fine
time we had in Haverford and of the kind
way in which you received us, I also gladly
remember my visit to the ohservatory, A
couple of weeks ago I sent you a little "book
"Flying over Holland" which I hope you will
like. Please, consider it as a modest
expression of our thanks !
With all good wishes, I ma
yours very sincerely.
