My dear Dr. Ogle
I think the “Die Befruchtung der Blumen durch Insekten by Dr. H. Müller 1873 Leipzig” (1 vol. with 478 pages), would be well worth your getting; for besides many excellent original observations, it seems a perfect index for Germany & Italy of all that has been done.—2
Yours very sincerely | Ch. Darwin
Please cite as “DCP-LETT-8901F,” in Ɛpsilon: The Charles Darwin Collection accessed on