Dennis O'Neil, Palomar College Dennis O'Neil, Palomar College Dennis O'Neil, Palomar College early theories of evolution Dennis O'Neil, Palomar College Dennis O'Neil, Palomar College Pre-Darwinian Theories early theories of evolution Pre Darwin science Dennis O'Neil, Palomar College Dennis O'Neil, Palomar College Dennis O'Neil, Palomar College In the 1820s, evolution was known as 'transmutation' Dennis O'Neil, Palomar College Theories of evolution before Darwin