Letter 12148 Haeckel, E. P. A. to Darwin, C. R. 12 July 1879 Summary Add + Thanks CD for comments on Freie Wissenschaft und freie Lehre [1878]. + Describes work on Medusae. + Describes work on Challenger Radiolaria and publication plans. Transcription The full text of this letter is not yet available online. Footnotes Add
