Series of well-done articles is result of a 1993 conference held in Mar del Plata on politics and emergence of the first democratic electoral systems in Argentina and Uruguay. Two articles look at voting in Uruguay in first part of this century; the remainder focus on Argentina. One article looks at connection between social and electoral reform; three examine politics in Buenos Aires prov.; another looks at Co rdoba. Two studies of Mar del Plata and one on the city of Santa Fe are also included. [JH]