Thomson, Arthur John

J. Arthur Thomson an Ernst Haeckel, Berlin, 14. September 1906

Berlin 14.9.06.

Dear Professor Haeckel,

I will be next Monday, 17.9. one day at Halberstadt (Central-Hôtel) and would be much pleased, if you could visit me there. I wish to discuss with you some important phylogenetic problems.

Very truly yours

D^r A. Thomson