I Natural Snow Crystals Observed in Arctic Canada (0.5 ～ 1.2mm)
II Snow Crystals Grown in Free Fall
II-1 Snow Crystals Grown in Free Fall for about 3-5min. (Dendrites, 0.5-0.6mm)
II-2 Snow Crystals Grown in Free Fall for about 3min. (Polycrystalline dendrites, 0.5-0.6mm)
III Ice Crystals Grown in a Cloud Chamber
III-1 Ice Crystals Grown for about 5 Minutes at -16.0C
III-2 Ice Crystals Grown for about 5 Minutes at -10.2C
III-3 Ice Crystals Grown for about 5 Minutes at -7.1C
