DESC: a brilliant series of twenty 35mm slides illustrating the ultrastructure of plant cells. this set includes typical plant cell nucleus nucleolus nuclear envelope nuclear pores endoplasmic reticulum glycogen ribosomes golgi apparatus mitochyondrion microvilli muscle fibers desmosomes mitotic cell chromosomes nerve axons pinocytotic vesicles lyzosomes lipid inclusions and basement membrane. a leaflet describing each slide is enclosed.