The results obtained in the Argonne 12-foot H2/D2 bubble chamber, the 4.8 m heavy liquid chamber Gargamelle at CERN, and in two large electronic apparatus at NAL, one placed in a wide-band energy beam, and the other in anarrow-band energy beam, relate mainly with the following topics : 1. A more detailed study of elastic and quasi-elastic ([MATH]) reactions at Argonne. 2. A precise study of [MATH]µ and [MATH]µ cross sections on nucleons in Gargamelle. 3. First observation of high energy neutrinos reactions in the 20-100 GeV range, and measurements on the neutrinos and antineutrinos cross sections, in the NB and WB experiments. - 4. First measurements of [MATH]e and [MATH]e cross sections on nucleons in the Gargamelle experiment. 5. Improved limits at NAL in the WB beam and NB beam on the mass of the W boson and limits on the mass of possible heavy leptons in the NB beam and in the Gargamelle experiment. 6. Observation of muonless events which behave as expected from neutral currents induced processes, in the Gargamelle experiment. A very new result on the same type of events in the WB NAL experiment has also been presented at the Bonn Conference.