Charles Darwin
12 audiobooks
Darwinism stated by Darwin himself / Characteristic passages from the writings of Charles Darwin 
Life and Letters of Charles Darwin — Volume 1 
More Letters of Charles Darwin — Volume 1 / A Record of His Work in a Series of Hitherto Unpublished Letters 
On the Origin of Species by Means of Natural Selection / or the Preservation of Favoured Races in the Struggle for Life. (2nd edition) 
On the Origin of Species By Means of Natural Selection / Or, the Preservation of Favoured Races in the Struggle for Life 
The Descent of Man and Selection in Relation to Sex, Vol. I 
The Descent of Man and Selection in Relation to Sex, Vol. II (1st Edition) 
The Origin of Species 
The Variation of Animals and Plants under Domestication 
The Variation of Animals and Plants Under Domestication, Vol. I. 
The Variation of Animals and Plants Under Domestication, Volume II (of 2) 
The Voyage of the Beagle