You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
The Biologic Origin of Mental Variety, or How We Came to Have Minds
The American Naturalist
Vol. 30, No. 360 (Dec., 1896), pp. 963-975
Stable URL: http://www.jstor.org/stable/2453211
Page Count: 13