Atlas of photographs of frontal sections of the cranium and brain of the rhesus monkey (Macacus Rhesus)

This atlas was published by RH Clarke, who is most widely known as coinventor of the Horsely-Clarke stereotaxic apparatus. It consists of labeled photographs of sections at about 1mm intervals through the entire brain. The brain was stained by perfusion with a dichromate solution and cut in the cranium to minimize distortion. This was the first, and very likely the most comprehensive, stereotaxically accurate, atlas of the Macaca mulatta (rhesus macaque) brain produced during the twentieth century. Yet it was almost completely lost to view by the neuroscientific community. Factors that may have accounted for its "disappearance" included publication in a clinically oriented journal under the very general title "Investigation of the Central Nervous System" some 15 years before primates became a common object of neurophysiologic study in the United States.