Figure 3.

Cajal's histological preparations and drawings showing some of his most important discoveries with the Golgi Method. (A) Chicken spinal cord; (B) 3 day-old chicken growth cones; (C) Cells from the olfactory mucosa; (D) Bipolar cells (for rods and cones) from the retina of cat; (E) Development of Purkinje cells in bird; (F) Climbing fiber (pericellular nest stage), newborn dog; (G) Development of granule cells in the cerebellum; (H) Dendritic spines of a pyramidal cell of the frontal cortex of man (unknown age); (I) Basket formation in motor cortex of 15-day-old child; (J) Pyramidal cells (J1,A,B,C,D,E) and Cajal-Retzius cell (J1,F,J2) of the cerebral motor cortex of a 15-old-day child. (Drawings reproduced with the permission of the Inheritors of Santiago Ramón y Cajal ©).