CD’s great interest in JS’s work on fertility of Primula crosses.
Thanks for Passiflora trials.
"By no means modify even in slightest degree any result."
CD wishes he had counted rather than weighed Primula seeds.
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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.
CD’s great interest in JS’s work on fertility of Primula crosses.
Thanks for Passiflora trials.
"By no means modify even in slightest degree any result."
CD wishes he had counted rather than weighed Primula seeds.
Encourages JS to continue work on coloured primrose. No one has noticed this since Gärtner. CD will send his own data for JS’s use and will read MS when ready. Advises JS to repeat experiments if evidence is weak – for his reputation’s sake and for satisfaction at fully establishing a fact.
Treviranus made a slip of pen in writing of Primula longiflora as short-styled.
His orchid paper limited because he does not give illustrations from distinct genera.
Discusses the self- and cross-fertility of coloured primrose varieties. Thanks CD for tables of unpublished Primula work.
Discusses heterostyly in Hottonia.
Criticises L. C. Treviranus’ statements on Primula longiflora’s having short-styled form.
Describes his results with crossing different coloured primroses. Will let CD, when he reads his paper, decide whether his finding white and red varieties perfectly sterile when crossed, yet fertile inter se, ought to be published.
Difficulty in getting his orchid paper published in Edinburgh New Philosophical Journal.