Part 1 Technological advancement: development of non-carbon support films for electron spectroscopic imaging (ESI) in biology; organization of keratin filaments following phosphorylation by estradiol in rat vaginal epithelial cells. Part 2 Cellular and membrane biology: ultramorphometric analyses of pineal organ from pregnant Indian palm squirrel funambulus pennanti; plasma membrane - domain formation during acrosomal reaction in the mammalian sperm cell. Part 3 Nuclear and chromosomal organization: nuclear spatial organization; stereoscopic ultrastructure of cell nucleus and chromosome; confocal laser scanning microscopic study on X chromosomal territory in human lymphocyte nuclei. Part 4 Medicine and pathology: the organization of gut-associated lymphatic tissue and lymph nodes as seen by scanning electron microscopy; mechanism of graft healing; primary epithelial amyloid keratopathy; light and electron microscopy of nerves in fuberculoid and lepromatous leprosy - pathology and pathogenesis of leprous neuropathy; electron microscopy in characterizing some inherited metabolic neurologic disorders. Part 5 Cancer biology: role of electron microscopy in the acurate diagnosis of mesotheliomas; ehnancement of mytomycin-C induced in vivo cytotoxicity of sarcoma 180 cells by y-radiation - an ultrastructural evaluation. Part 6 Plant sciences: ultrastructural evidence of effective actinorthizal nodulation in casuarina equisetifolia; ultrastruture of terpenoid secretory cells of neem (azadirachta indica a. juss.).