Headnote: I have just learned that the great scholar Jacques Barzun has died. It is hardly a life cut short -- he was born on November 30, 1907, so he was about a month short of turning 105. Still, for those of us to whom his life and work mattered, he had come to seem immortal. And in any sense that scholarship can secure: he is. For now, I will proceed with the material prepared for this and the following two entries in this blog. But I will have more to say about Barzun here soon enough.] Stephen Jay Gould, the paleontologist who did a good deal to educate the non-scientists of the world about the biology of evolution, passed away back in 2002. He might be surprised to learn that his name has now become a bone of contention [a fossilized bone of contention?] among economists. Of course it isn't all that surprising that there should be cross-fertilization between biology and economics. Ask Malthus about this. Ask Herbert Spencer. Still, my understanding is that this wasn...