1978 Photomicrography Competition

Sodium chloride crystal in salt solution

John J. Kroll

Location
Livonia, Michigan, USA
Technique
Rheinberg Illumination
Magnification
100x

D19 stock solution crystals, 2 hours old

Susan E. Brown

Location
San Diego, California, USA
Technique
Polarized Light
Magnification
1000x

Crack propagation specimen

Paul Chapello

Location
Argonne, Illinois, USA
Technique
Nomarski Differential Interference Contrast
Magnification
156x