A novel homologous series of liquid crystals viz. 4-(4'-n-alkoxy benzoyloxy) n-propyl cinnamates comprising of 11 homologues has been synthesized. It is a middle ordered melting type of series with exhibition of smectic and nematic mesophases. The first to fifth members of the series are non-mesomorphic. Mesomorphic behavior commences from the sixth homologue. The octyloxy (C-8) and decyloxy (C-10) homologues are polymesomorphic. The smectic-nematic and nematic-isotropic transition curves behave in a normal manner except for the hexadecyl derivative, which slightly deviates from normal behavior (N-I). An odd-even effect was not observed for the N-I or Sm-N transition curves. The texture of nematic phase is threaded or Schlieren and that of the smectic phase is focal conic fan shaped of the smectic-A type. Transition temperatures and textures of mesophases were observed through an optical polarizing microscope equipped with a heating stage. Thermal stability and mesomorphic characteristics are compared with a structurally related series. Analytical and spectral data support the structure of the molecules.