1981 Photomicrography Competition

Ascorbic acid (vitamin C)

Cyrus A Hawkins

Affiliation
Wake County Medical Center
Raleigh, North Carolina, USA
Technique
Polarized Light
Magnification
100x

Cross section of a maturing pollen sac

Lisa R. Grillone

Affiliation
New York University (NYU)
New York, New York, USA
Technique
Biphasic Oblique Illumination
Magnification
25x

Polished section of labradorite (feldspar mineral)

John I. Koivula

Affiliation
Gemological Institute of America
Carlsbad, California, USA
Technique
Oblique Incident Fiber Optic Illumination
Magnification
60x