Galilean transformation
In line with that comment, in his book Aether and Matter published in 1900, Larmor used a modified local time "t″=t′-εvx′/c2" instead of the 1897 expression "t′=t-vx/c2" by replacing "v/c"2 with "εv/c"2, so that "t″" is now identical to the one given by Lorentz in 1892, which he combined with a Galilean transformation for the "x′, y′, z′, t′" coordinates: