The in vitro susceptibility of 61 strains of Salmonella from pathological specimens was tested by an agar dilution technique to four aminoglycoside and to seven cephalosporin antibiotics. Aminoglycosides were effective against these isolates. Ten strains of Salmonella wien were found resistant to cephapirine, cefazolin, cephaloridine, cephalotin, but susceptible to cepharidine and expecially to cefuroxim.