Leave it to Morbid Anatomy, the Brooklyn-based repository for creepy and morbid knowledge, to host a lecture on Dr. Samuel George Morton, a 19th-century naturalist who collected 1,000-plus human skulls in the course of his not-quite-scientific research. Professor Ann Fabian, who recently wrote about the doctor in her book The Skull Collectors: Race, Science, and America’s Unburied Dead, will lead us through the heady tale.