Misiak, H. (1961). Genealogy of psychology. In H. Misiak, The philosophical roots of scientific psychology (pp. 1-13). Bronx, NY, US: Fordham University Press.
http://dx.doi.org/10.1037/11150-001
Scientific psychology originated in the last quarter of the nineteenth century. Its origin was prepared by philosophy and science. The most important root of psychology was philosophy. The others were physiology and scientific methodology. The philosophical past played a significant role in shaping psychology's character and development. Psychology began its existence as a separate science when it broke away from philosophy, in the 1870's. (PsycINFO Database Record (c) 2016 APA, all rights reserved)