We present evidence that an interplanetary magnetic cloud preceding an interaction region, observed at earth January 24, 1974, is associated with the eruptive filament or disparition brusque (DB) near central meridian on January 18. The DB also was associated with a long-decay soft X ray transient (LDE) and a long-duration gradual-rise-and-fall (GRF) radio burst. To assess whether magnetic clouds are generally associated with DBs, we present results from statistical testing of the relation of 33 magnetic clouds (and 33 control samples without magnetic clouds) to disappearing filaments near central meridian (≲ 45 deg (CMD). we find support for the hypothesis that magnetic clouds are the 1-AU counterparts of either eruptive filaments or the coronal mass ejections which probably accompany them. The major result is that disappearing filaments occur more frequently on the days when magnetic clouds are launched than on control days, a result obtained with >99% confidence. There is a suggestion that clouds following shocks, probably launched at times of solar flares, are not as strongly associated with disappearing filaments as are clouds launched less violently.