The combined edniques of lamellar decoration and ruthenium tetraoxide staining have been uest to reveal molecular director orientation around the disclination in the frozen nematic state of polymers by transndssion electron microscopy. All six discllnations with strength S=±1/2 and S=±1 in the nematic mesophase of a thermotropic aromatic copolyester have been observed. It is also observed that every disclination

interacts and is connectal with its neighbouring disclination to form in pairs of the disclination.