From Robert Caspary 25 February 1866
Summary
Sends papers on graft-hybrids ["Sur les hybrides obtenus par la greffe", Bull. Congr. Int. Bot. & Hortic. Amsterdam (1865): 65–80, and "Über Mischlinge, durch Pfropfen entstanden", Sitzungsber. K. Phys.-oekon. Ges. Königsberg 6 (1865): 11–21].
| Author: | Johann Xaver Robert (Robert) Caspary |
| Addressee: | Charles Robert Darwin |
| Date: | 25 Feb 1866 |
| Classmark: | DAR 161: 118 |
| Letter no: | DCP-LETT-5018 |
From Fritz Müller 13 February 1866
Summary
Thanks CD for Journal of researches.
Insect genus Elater is an exception to the rule that all luminous organs give out a green light.
Gives some observations on climbing plants at Itajahy.
His study of orchids has convinced him of the value of CD’s book.
| Author: | Johann Friedrich Theodor (Fritz) Müller |
| Addressee: | Charles Robert Darwin |
| Date: | 13 Feb 1866 |
| Classmark: | Möller ed. 1915–21, 2: 79–80 |
| Letter no: | DCP-LETT-5004A |
From J. D. Hooker [26 or 27 February 1866]
Summary
Lyell wants to see JDH’s last letter [the part on glacial periods]. Lyell full of concern about astronomical causes of heat and cold on the globe.
Encloses letter from John Scott.
| Author: | Joseph Dalton Hooker |
| Addressee: | Charles Robert Darwin |
| Date: | [26 or 27] Feb 1866 |
| Classmark: | DAR 102: 65–6; Royal Botanic Gardens, Kew (Directors’ Correspondence 156: 1048) |
| Letter no: | DCP-LETT-5017 |
From A. R. Wallace 4 February 1866
Summary
Looks forward to reading Variation.
Explains how two or more female forms occur in one species through selection. The physiological problem remains of how each produces offspring like the other without intermediates. Is not CD’s case of varieties that will not blend the physiological test of a species needed for "complete proof of the origin of species"?
"Travels" postponed.
| Author: | Alfred Russel Wallace |
| Addressee: | Charles Robert Darwin |
| Date: | 4 Feb 1866 |
| Classmark: | DAR 106: B31–2 |
| Letter no: | DCP-LETT-4997 |
From J. D. Hooker 21 February 1866
Summary
Had Busks and Lyells to dinner.
Examines and criticises evidence for CD’s hypothesis that the glacial period was not one of universal cold. Physicists deny its possibility.
| Author: | Joseph Dalton Hooker |
| Addressee: | Charles Robert Darwin |
| Date: | 21 Feb 1866 |
| Classmark: | DAR 102: 59, 62–4 |
| Letter no: | DCP-LETT-5013 |
Matches: 1 hit
| letter | (5) |
| Darwin, C. R. | (5) |
| Hooker, J. D. | (2) |
| Caspary, Robert | (1) |
| Müller, Fritz | (1) |
| Wallace, A. R. | (1) |
