Studies on the structure of the cerebral cortex. I. Area entorhinalis. II. Continuation of the study of the Ammonic system.

Lorente de Nó "demonstrated structural evidence that the cortical areas of mammals are organized in a columnar manner rather than in horizontal layers, thus articulating for the first time the basic features of the columnar organization of the cerebral cortex" (Rodriguez and Verkhratsky, Rafael Lorente de Nó (1902-1990): The pioneer of physiologycal [sic] neuroanatomy" ).