Sonic Waveform Images file dictionary for ODP Leg 199 - Hole 1218A
199-1218A_mono_p1.gif = Sonic Waveforms Images - Monopole - Pass 1
199-1218A_mono_p2.gif = Sonic Waveforms Images - Monopole - Pass 2
199-1218A_udip_p1.gif = Sonic Waveforms Images - Upper Dipole - Pass 1
199-1218A_udip_p2.gif = Sonic Waveforms Images - Upper Dipole - Pass 2