Pepperberg,I.M.(1994).Vocal learning in African grey parrots:Effects of social interac-
tion.Auk111:300–313.
Polyak,S.(1957).The Vertebrate Visual System.Chicago:University of Chicago Press.
Premack,D.and Woodruff,G.(1978).Does the chimpanzee have a theory of mind?
Behavioral and Brain Sciences4:515–526.
Rockel,A.J.,Hiorns,R.W.,and Powell,T.P.S.(1980).The basic uniformity in structure of
the neocortex.Brain103:221–244.
Savage-Rumbaugh,E.S.,Murphy,J.,Sevcik,R.A.,Brakke,K.E.,Williams,S.L.,and
Rumbaugh,D.M.(1993).Language comprehension in ape and child.Monographs of the
Society for Research in Child Development 58:1254.
Schusterman,R.J.,Thomas,J.A.,and Wood,F.G.(Eds.) (1986).Dolphin Cognition and
Behavior:A Comparative Approach.Hillsdale,NJ:Erlbaum.
Simpson,G.G.(1970).Uniformitarianism:An inquiry into principle,theory,and method in
geohistory and biohistory.In M.K.Hecht and W.C.Steere (Eds.)Essays in Evolution and
Genetics in Honor of Theodosius Dobzhansky(pp.43–96).Amsterdam:North-Holland.
Stebbins,W.C.(1983).The Acoustic Sense of Animals.Cambridge:Harvard University
Press.
Stephan,H.,Frahm,H.,and Baron,G.(1981).New and revised data on volumes of brain
structures in insectivores and primates.Folia Primatologica35:129.
von Uexküll,J.(1934).Streifzüge durch die Umwelten von Tieren und Menschen.Berlin
and New York:Springer-Verlag.(Translated in C.H.Schiller,[Ed.] [1957].Instinctive
Behavior:The Development of a Modern Concept[p.580].New York:International
Universities Press.)
Zeki,S.(1993).A Vision of the Brain.London:Blackwell.
196 Harry Jerison