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From Hugh Falconer   24 August [1863]

Summary

Sends information about Pliocene fauna of the "Forest Bed" of the Norfolk coast.

A genus described as extinct by Owen is found by E. A. I. H. Lartet to exist in Russia.

Edouard Suess attributes to Oswald Heer and HF the generalisation "That the time during which a new species is formed, is (as a rule) very short in comparison with the time during which it persistently presents the same peculiar specific characters". [Edouard Suess, "Über die Verschiedenheit und die Aufeinanderfolge der tertiären Landfaunen in der Niederung von Wien", Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften in Wien (Math-naturw. Klasse) 47 (1863): 306–31.] [See 4277.]

Author:  Hugh Falconer
Addressee:  Charles Robert Darwin
Date:  24 Aug [1863]
Classmark:  DAR 164: 16
Letter no:  DCP-LETT-4273A

From Hugh Falconer   29 August 1863

Summary

HF will send E. Suess’s paper [Edouard Suess, "Über die Verschiedenheit und die Aufeinanderfolge der tertiären Landfaunen in der Niederung von Wien", Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften in Wien (Math–nat. Klasse) 47 (1863): 306–31] which deals directly with natural selection.

Author:  Hugh Falconer
Addressee:  Charles Robert Darwin
Date:  29 Aug 1863
Classmark:  DAR 164: 17
Letter no:  DCP-LETT-4284
Document type
letter (2)
Author
Falconer, Hugh[X]
Addressee
Correspondent
Date
1863
08
24 (1)
29 (1)
letter