![Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1. Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1.](http://darwin-online.org.uk/converted/scans/1875_Variation_F880(online)/1875_Variation_F880.1_298.jpg)
Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F878.1(online)/1868_Variation_F878.1_160.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F877.1(online)/1868_Variation_F877.1_155.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F878.1(online)/1868_Variation_F878.1_352.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.
![Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1. Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1.](http://darwin-online.org.uk/converted/scans/1875_Variation_F880(online)/1875_Variation_F880.1_080.jpg)
Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F878.1(online)/1868_Variation_F878.1_005.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F878.1(online)/1868_Variation_F878.1_151.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F878.1(online)/1868_Variation_F878.1_071.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. 1st edition, second issue. Volume 1.
![Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1. Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1.](http://darwin-online.org.uk/converted/scans/1875_Variation_F880(online)/1875_Variation_F880.1_178.jpg)
Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d edition. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F877.1(online)/1868_Variation_F877.1_087.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F877.1(online)/1868_Variation_F877.1_178.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F877.1(online)/1868_Variation_F877.1_243.jpg)
Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.
![Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1. Darwin, C. R. 1868. The variation of animals and plants under domestication. London: John Murray. First edition, first issue. Volume 1.](http://darwin-online.org.uk/converted/scans/1868_Variation_F877.1(online)/1868_Variation_F877.1_084.jpg)