Used in X-rays
Long glass tube that is curled into figure-eights and has a yellow, small, circular glass chamber after each figure-eight. Each end has a larger, oval-shaped glass chamber.
Health Sciences Library
State University of New York at Buffalo
Batt, Richard C.
Contact the History of Medicine Collection, http://ublib.buffalo.edu/libraries/units/hsl/history/
“X-Ray tube,” Digital Collections - University at Buffalo Libraries, accessed December 12, 2018, https://ubdigit.buffalo.edu/items/show/16887.