“Nine months after taking over as acting director at the National Museum of Natural History, biologist Paul G. Risser has announced he is returning to an academic post in Oklahoma… Risser said he had planned to spend only six months in the job.”
“Nine months after taking over as acting director at the National Museum of Natural History, biologist Paul G. Risser has announced he is returning to an academic post in Oklahoma… Risser said he had planned to spend only six months in the job.”