44 Pages in Charles Darwin's Library associated with "geology - feldspar"

Description physique des Îles Canaries, suivie d'une indication des principaux volcans du globe
By: Buch, Leopold von, Freiherr, - Boulanger, C.
Publication info: Paris, F.G. Levrault, 1836
Pages: Page 156 Page 159 Page 159 Page 163 Page 163 Page 170 Page 171 Page 171 Page 178 Page 178 Page 181 Page 181 Page 190 Page 190 Page 191 Page 191 Page 193 Page 193 Page 300 Page 300 Page 327 Page 327 Page 334 Page 334 Page 335 Page 350 Page 350 Page 418 Page 418 Page 466 Page 466 Page 467 Page 470 Page 470 Page 472 Page 472 Page 480 Page 480 Page 483 Page 485
Manual of mineralogy
By: Jameson, Robert.
Publication info: Edinburgh, Archibald Constable & Co, 1821
Pages: Page 346 Page 346 Page 387
Principles of geology
By: Lyell, Charles, Sir,
Publication info: London, John Murray, 1837
Volume: v.4
Pages: Page 340