Previously I posted here about the latest (2004) book by Boyd & Richerson. Turns out they have an older book on the subject: Culture and the Evolutionary Process 1985, University of Chicago Press. The older book is excellent as well. It is loaded with mathematical models of evolution, in which the transmission of culture is a system of inheritance -- one that ultimately effects survival rates, hence is an evolutionary selective pressure in the strict Darwinian sense. It will be some time, but I will eventuallly revise & strengthen (to a tremendous degree) the sections of Beyond Veg articles dealing with the culture-evolution linkage. When I do that, I will of course debunk the lies of the psuedoscience frauds that the culture-evolution linkage is Lamarckism. Tom Billings