Oct 28 operations

Core 86  61 minutes to core; coming out at 1033 hrs

Core 87 64 minutes to core;  coming out at 1141 hrs

Core 88 problems with coring;  recovered 7" core (very indurated); went back in and fished additional 7"; after four tries it appears that core barrel cannot latch into the lander at the bit;  began pulling pipe at 1515 hrs.  Getting ready to elog. Attempting to log with sonic tool.  Could not get below 273 feet.  Sonic log not communicating with data computer -- interpreted as problem with procedure as opposed to tool failure.  Hung up coming out at 134 ft.  Recovered sonic tool.  Went back in with gamma/resistivity/SP.  Went down to 147 ft and logged up with successful log.  Will check on sonic tool in the morning.