We have measured the temperature dependence of the intensity and spectrum of light scattered by fluctuations in the nematic phase of $p$-methoxy-benzylidene $p-n$-butylaniline. Our measurements are interpreted using two phenomenological theories of nematic liquid crystals.

• Received 16 October 1970

DOI:https://doi.org/10.1103/PhysRevLett.25.1550