title: Innervation patterns of single optic nerve fibers in the Limulus brain: a modification of the cobalt staining technique for cut axons.
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology*; D003035:Cobalt; D006737:Horseshoe Crabs / Q000033:anatomy & histology*; D009412:Nerve Fibers; D009900:Optic Nerve / Q000166:cytology*; D013194:Staining and Labeling
chemical_list: D003035:Cobalt