Vaccinating calves
Vaccinating calves against blackleg without chute. Government blackleg vaccine used. Headquarters Ranch. Jornada Range Reserve. File number S32GR22. New Mexico. United States Forest Service Washington D.C. Black and white images hand painted directly on glass with either transparent oil paints, aniline dyes or watercolors by colorists. Glass lantern slides were sometimes baked after painting to set paint layers.