Before revision: He grew up in Columbus, Ohio, and graduated from Cornell University in 1911 with a degree in mechanical engineering.<ref name=NAS_bio></ref Early on, Midgley had a penchant for finding useful applications for known substances.
After revision: <He grew up in Columbus, Ohio, and graduated from Cornell University in 1911 with a degree in mechanical engineering.<ref name=NAS_bio></ref Early on, Midgley had a penchant for finding useful applications for known substances.