Smithsonian Archives preservation coordinator Alison Reppert Gerber examines one of Bentley’s glass slides.
Smithsonian Archives preservation coordinator Alison Reppert Gerber examines one of Bentley’s glass slides. Gillian Brockell The Washington Post
Smithsonian Archives preservation coordinator Alison Reppert Gerber examines one of Bentley’s glass slides. Gillian Brockell The Washington Post

The man who uncovered the secret lives of snowflakes

January 20, 2017 09:10 PM