“…Similar lipid droplets had been demonstrated by light microscopy in several kinds of human cells, for instances in eccrine sweat gland cells (MELCZER, 1931;NAGAMITSU, 1941;ITO, 1943;IWASHIGE, 1952) and in anterior pituitary cells (FOSTER, 1956 a, b); those in the sweat gland were electron microscopically reinvestigated by IIJIMA (1959), ITO and SHIBASAKI (1966). The characteristic lipoidal bodies in human islet cells were described by almost all investigators engaged in electron microscopic observations of human endocrine pancreas (YOKOH et al, 1959;LAZARUS and YOLK, 1962;BENCOSME et al, 1963;GREIDER and ELLIOTT, 1964;LIKE, 1967).…”