In looking to the museum for advice, Roosevelt was turning to the epicenter of American natural science. The museum, encompassing four city blocks between Seventy-seventh and Eighty-first Streets, had grown during Roosevelt’s lifetime to become not only one of the world’s leading natural-history museums, but also a renowned sponsor of expeditions to all corners of the earth, from the North Pole to the Gobi Desert to the lush jungle of the Congo.

