“…Closer scrutiny of this record revealed that an illumina tion caused vigorous discharges at the onset of a flash of light (superimposed upon the ERG) and following a brief period of silence a sustained discharge lasted as long as the stimulus continued. The discharge pattern just described is basically the same as that of the live squid (MaacNichol and Love 1960; Ito et al 1973) and the octopus ). Spontaneous and "off" discharges have never been observed in this study on the isolated preparation.…”