Before revision: The principle of similitude is a supplement to the scientific method advocated by Lord Rayleigh (1842–1919) that requires that any suggested scientific law be examined for its relationship to similar laws.
After revision: The principle of similitude is a supplement to the scientific method advocated by John Strutt (Lord Rayleigh) (1842–1919) that requires that any suggested scientific law be examined for its relationship to similar laws.