The experience of reading Sex and Race is one of embrace and recoil as Rogers indiscriminately loads us down with the provable and the forever dodgy, the serious and the frivolous. Sometimes his footnotes, not always adequate or acceptable, tell when he was at work on a given aspect of his subject, in the way that an itemized credit card bill is a diary, a record of movement. The references go in clusters: in the 1920s, he was reading about Syria, Palestine, Arabia, and Persia; in the 1930s, he was reading the memoirs of English travelers in Africa. Sometimes, he clearly couldn’t go back to a particular library or text to check his facts again. And sometimes Sex and Race reads as though it had threatened to consume him, because the first-person voice breaks through in the book at times of what could be called narrative stress.