The SciencesOctober 1, 1939
Eyes that See Through Atoms
Spectroscopic Analysis the Supersensitive, In Vitamin Research the Spectroscope Short-Circuits the Overworked Rat, The X-Ray Spectrograph
Stories by George Russell Harrison
TechnologySeptember 1, 1939
Eyes that See Through Atoms
The Spectroscope, Long a Master Key in Science, is Proving to be of Major Practical Importance In a Wide Variety of Arts and Industries