Xylene-resistant labels for the identification of glass microscope slides used in histological and immunohistochemical staining protocols. These labels are designed with an over-laminating flap that protects the printout from immersion in xylene and other clearing agents, as well as high temperatures, and acidic/basic buffers used during the antigen retrieval process. HistoLAM labels are also compatible with fully automated slide processors and special stainers, and can be integrated with laboratory management systems.