La température de transition supraconductrice de cristaux de V 3 Si qui ne montrent pas la transformation Batterman-Barrett a été mesurée sous pressions hydrostatiques jusqu'à 45 kbar dans un appareil récemment construit. Un changement important de la pente de T (P) à 30 kbar est attibué à la transformation prédite par Larsen et Ruoff. c Abstract.-The superconducting transition temperature of two V 3 Si single crystals which do not show a Batterman-Barett transformation at zero pressure was

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... ured resistively with a newly developed hydrostatic pressure cell to 45 kbar. A clear slope change in T (P) at 30 kbar is attributed to the pressure-induced phase transformation predicted by Larsen and fiuoff. Most known superconductors with high super-