Thanks CD for Origin, 6th ed.
Has declined chair at Strasbourg.
Describes research on calcareous sponges.
Criticises Pangenesis.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Thanks CD for Origin, 6th ed.
Has declined chair at Strasbourg.
Describes research on calcareous sponges.
Criticises Pangenesis.
Comments on EH’s criticism of authors in third edition of Natürliche Schöpfungsgeschichte [1872].
Discusses book by H. C. Bastian [The beginnings of life (1872)].
Much experiment and observation needed before spontaneous generation will be empirically advanced, but philosophically the matter is clear.
Thinks Ludwig Rütimeyer has attacked EH to satisfy pious opinion in Basel.
Will soon be finished with his monograph Die Kalkschwämme [1872].
Thanks CD for Expression.
Describes work on Die Kalkschwämme and its principal conclusions.
The application of biogenetic law.
Notes variability among calcareous sponges.
Gastrula-like "Gastraea" as ancestor of multicellular animals.
Posits homology between Hydra, Olynthus of calcareous sponges, and initial germ layers of higher animals.
Comments on Lubbock’s Prehistoric times [1865]
and on David Strauss’s Der alte und der neue Glaube [1872].
Comments on EH’s forthcoming [Die Kalkschwämme (1872)].
Thinks EH is working much too hard.