Wilson Bentley farmed in Jericho, Vermont, while spending winters chasing objects that destroyed themselves at room temperature. A snow crystal could land, reveal its structure, and disappear. To preserve it, Bentley refined a method of combining a microscope with photography and worked quickly enough to record the crystal before melting erased it.

Over more than forty years, he photographed over 5,000 snow crystals. The images converted fleeting ice into comparable specimens: branching plates, columns, and intricate sixfold forms could be arranged and studied long after the storm ended. His collection helped popularize the observation that individual snowflakes differ, though the photographs do not constitute a proof that two identical crystals can never exist.

Bentley's work demanded an odd partnership between weather and machinery. The specimen arrived from the sky with no appointment. It had to be isolated without damage, positioned under magnification, focused, and exposed while remaining frozen. The laboratory clock began running the moment the flake landed.

The Smithsonian Institution Archives holds 500 of Bentley's photographs. Near the end of his life, he co-published Snow Crystals, a book containing about 2,300 images. A Vermont farmer turned weather into an archive one vanishing specimen at a time: every glassy star survived because camera, microscope, cold air, and human patience completed their work before warmth did.