histology and cytology and haematology and microbiology supplies, namely, detection kits containing monoclonal and polyclonal antibodies and reagents therefor for scientific and medical research; laboratory products, namely, histology and cytology clearing agents, decalcifying solutions, dehydration reagents, fixative solutions, gels for specimen processing, microscope immersion oil, mounting mediums for slides, solutions used in staining, stain buffers, stain removers, stains, tissue freezing medium, tissue marking dyes, and waste neutralizing solutions for medical and scientific purposes; solvents for laboratory use, namely, acetones, ethyl alcohol, formaldehydes, isopropyl alcohol, methyl alcohol and xylenes; chemicals, namely, a granular powder for use in the clean-up of formaldehyde spills for laboratory and hospital use; adhesive bands for microtomy in the nature of specimen adhesive; cryogenic compounds for fast freezing of tissue