Edgar Longman

Longman was responsible for much of the artwork in the 1951 Festival of Britain Science Exhibition at South Kensington. He designed the elements in the order of their mass for the Periodic Table as part of the Exhibition within a spiral design (unlike most school chemistry periodic table designs). At the 1951 Festival of Britain, Longman also displayed: Diagram of Aston's original equipment for measuring the mass of isotopes; Table of Elements showing electron shell…