Stereoscopic ATLAS OF RATS Embryo, 1938, J.A. Long, PhD Associate Professor of Embryology and Paul L. Burlingame Zoology PhD Research Fellow at University of California (Berkeley, California), complete with stereoscopic viewer. Stereoscopic view (50) Silver gelatin prints, image size, 95 x 75mm, sheet size, 150 x 100mm, numbered and description scheme in the negative, copyright written in verse.