Dr. Juan Negr n L pez (1892-1956) was a man of immense talent, energy, and socialist convictions who served the Spanish people in different capacities: as a physiologist of international reputation and as chairman of the medical faculty of the Complutense University in Madrid during the 1920s; as an active member of the Parliamentary wing of the Socialist Party, 1931-1936; during the Civil War as Minister of Finance in the Popular Front government...