1986 Photomicrography Competition

Entamoeba histolytica in axenic culture

Joaquin Carrillo-Farga

Affiliation
National University of Mexico
Department of Histology
University City, Mexico
Technique
Jamin-Lebedeff Interference Contrast
Magnification
165x

A hypotrich ciliated protozoan of the genus Euplotes

Helena C. Arteta

Location
Alexandria, Virginia, USA
Technique
Darkfield
Magnification
100x

Thin wafer of synthetic ruby corundum (rock-forming mineral)

John I. Koivula

Affiliation
Gemological Institute of America
Carlsbad, California, USA
Technique
Polarized Light
Magnification
40x