The observation of families and air showers is carried out at Mt. Chacaltaya (5200m, 540g/cm2 atmospheric depth, Bolivia) by operating the emulsion chamber and the air shower array simultaneously. We summarize in this paper the results of the experiment, leaving the description of experimental apparatus, experimental procedure, etc. elsewhere (KAWASUMI N. et al., AIP Conf. Proc., 276 (1992) 88; Proc. XXIV ICRC, Rome, 1 (1995) 201). The analysis relies on the data of 47 families of ΣEγ ≥ 10 TeV with the accompaniment of air showers.