48 Pages in Charles Darwin's Library associated with "intermediacy, gradation: 'gradualism'"

Contributions to the natural history of the United States of North America
By: Agassiz, Louis,
Publication info: [s.n.], [s.n.], n.d
Pages: Page 194 Page 195
Essais de zoologie générale
By: Geoffroy Saint-Hilaire, Isidore,
Publication info: Paris, Roret, 1841
Volume: Zoologie générale (1841)
Pages: Page 434
Histoire générale et particulière des anomalies de l'organisation chez l'homme et les animaux
By: Geoffroy Saint-Hilaire, Isidore,
Publication info: Paris, J.B. Baillière, 1832-1837
Volume: v.3
Pages: Page 608
Histoire naturelle générale des règnes organiques
By: Geoffroy Saint-Hilaire, Isidore,
Publication info: Paris, Victor Masson, 1854-1862
Volume: v.2
Pages: Page 418
Intermarriage
By: Walker, Alexander,
Publication info: London, Churchill, 1838
Pages: Page 281 Page 282
Leçons de botanique
By: Saint-Hilaire, Auguste de,
Publication info: Paris, P.J. Loss, 1841
Pages: Page 35 Page 36 Page 515 Page 516 Page 548 End Slip 1 End Slip 1
A manual of elementary geology
By: Lyell, Charles, Sir,
Publication info: [s.n.], [s.n.], 1855
Pages: Page 258
On the genesis of species
By: Mivart, St. George Jackson,
Publication info: London, Macmillan & Co, 1871
Pages: Page 21 Page 37 Page 38 Page 97 Page 105 Page 107 Page 112 Page 232 Page 240 End Slip 2, side 2
On the nature of limbs
By: Owen, Richard,
Publication info: London, John Van Voorst, 1849
Pages: Page 86 Page 86
On the variation of species
By: Wollaston, Thomas Vernon,
Publication info: London, John Van Voorst, 1856
Pages: Page 158 Page 158 Page 165 Page 165
Principles of comparative physiology
By: Carpenter, William Benjamin,
Publication info: London, John Churchill, 1854
Pages: Page 319 Page 320 Page 325
Principles of geology
By: Lyell, Charles, Sir,
Publication info: London, John Murray, 1837
Volume: v.2
Pages: Page 376 Page 376 Page 139 Page 139 Page 162 Page 163
Studien zur Descendenztheorie. I
By: Weismann, August,
Publication info: Leipzig, Engelmann, 1875
Pages: Page 16 Page 16
Studien zur Descendenztheorie. II. über die letzen Ursachen der Transmutationen
By: Weismann, August,
Publication info: Leipzig, W. Engelmann, 1876
Volume: v.2
Pages: Page 192
über den Einfluss der Isolirung auf die Artbildung
By: Weismann, August,
Publication info: Leipzig, W. Engelmann, 1872
Pages: Page 41 Page 41 Page 42 Page 42
über Raçen der landwirthschaftlichen Hausthiere
By: Sturm, Carl Christoph Gottlieb.
Publication info: Ebberfeld, Büscher, 1825
Pages: Page 115