Evans attended the
Birmingham Municipal Technical School, and then sat as an external candidate for the
University of London B.Sc. Immediately after the examination in 1911 he was appointed a Sharpey Scholar in the Physiology Department of
University College, sponsored by Professor
Ernest Starling. He subsequently received M.R.C.S., L.R.C.P degrees from University College Hospital, in 1916. He then joined the Royal Army Medical Corps, and supervised anti-gas training in several units. ==Scientific career==