The effects of friction in the exten­someter apparatus, likely caused by contact between the extensometer cable and the casing, are evident throughout the record by periods of little change which are terminated by small vertical offsets, which resulted in a frictional deadband in the record. The friction was largely overcome by manually oscillating the cable during field visits, which involved applying force to the cable to free it from the friction. Therefore, the magnitude of compaction that occurred during periods of friction was recorded when the friction was overcome; however, the time delay between actual compac­tion and recording of the compaction during these periods is unknown.