Stokes corresponded with Wheatstone on the chemistry of colour. Maxwell, as well as Thomson, became a friend and colleague at Cambridge; they collaborated for over 50 years. Thomson personally benefited from Stokes’ sharing of his ideas about spectroscopy, and pointed out that several important discoveries of Stokes’ were uncreditied to him as he’d never formally published them. Adam, Owen, Crookes, Tait, Herschel and Airy were among his frequent scientific correspondents.