On the Origin of Species, published on 24 November 1859, is a work of scientific literature by Charles Darwin which is considered to be the foundation of evolutionary biology. Its full title was On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. For the sixth edition of 1872, the short title was changed to The Origin of Species. Darwin's book introduced the scientific theory that populations evolve over the course of generations through a process of natural selection. It presented a body of evidence that the diversity of life arose by common descent through a branching pattern of evolution. Darwin included evidence that he had gathered on the Beagle expedition in the 1830s and his subsequent findings from research, correspondence, and experimentation.

Jung ilk kez 1912 yilinda yayimladigi Libidonun Sembolleri veDönüsümleriyle, Freudun psikanalitik ekolünden kopusunu ilan etti.Kitap, cok gecmeden onun en bilinen ve en etkili calismasi haline geldi.Teorisinin gelisiminde, gecis halindeki bir durumu temsil ettigi icin, uzunyillar boyunca eserini yeniden düzenlemek isteyen Jung, bu isteginiancak 1952 yilinda gerceklestirebildi.Jungun kendi sözleriyle Dönüsüm Sembolleri, sizofreninin prodromalevrelerinin pratik bir anlayisi üzerine genisletilmis yeni bir yorumdur.Vakanin belirtileri, sembolik paraleller labirentinde, yani örnek teskileden durumun anlamini saptamak istiyorsak mutlaka gerekli olanayrintilar arasinda, bize yol göstermek icin Ariadne ipini olusturur.Jung, bu paralelliklerin izlenmesinde disiplinlerarasi bir yol cizerekdinden, mitolojiden, etnolojiden, sanattan ve psikiyatriden yararlanir.Batidan ve Dogudan bircok eseri ele alir. Imge, sembol ve mit arasindakiiliskileri saptar; rüyalar, masallar, efsaneler ve fantezi görüntülerininarketiplere dayanan nedenlerini aciklayip yorumlar.