11" Fitzroy Storm Glass

What is a Fitzroy Storm Glass and how do I read it?   According to Fitzroy’s findings, this glass barometer forecasts the weather based on changes in the formation of crystals inside the column. If the liquid is clear, the weather will be bright and clear. If the liquid is cloudy, the weather will be cloudy as well, perhaps with precipitation. If there are small dots in the liquid, humid or foggy weather should be expected. A cloudy glass with small stars may indicate thunderstorms. If the liquid contains small stars on sunny winter days, expect snow. If there are large flakes throughout the liquid, it should be overcast in temperate seasons or snowy in the winter. Crystals at the bottom indicate frost. Threads near the top mean that it will be windy. Examples of readings you may get on your storm glass: Fern-like Crystals Are Building Up: Cold Stormy Fern-like Crystals Are Disappearing: Improving Weather Star Crystals Are Falling Down: Frost and Maybe Snow Star Crystals