Nervous "ystem, ce"tral, evidence of, [8]
Nervous "ystem, ce"tral, evolution of, [34]
Nervous "ystem, ce"tral, importance of, [16], [463], [482], [498]
Nervous "ystem, ce"tral, invertebrate, [10], [13], [54]
Nervous "ystem, ce"tral, origin of, [480]
Nervous "ystem, ce"tral, relation of germ-band to, [483]
Nervous "ystem, ce"tral, segmentation of vertebrate, [51]
Nervous "ystem, ce"tral, tube of, [36]-[51], [102], [211], [433], [455], [457]
Nervous "ystem, ce"tral, vertebrate, [10], [13], [40], [41], [152]
Nervous "ystem, enteric, [447]