The authors studies the surgical treatment of the gastric-eluodenal ulcer in general and divides the explanation into four epigraphs: 1st the chronic ulcer; 2nd the perforated ulcers; 3rd the liemorragic ulcers, and 4th the post-operative ulcers. He makes ample comments obout the opinions of the most distinguished surgeons of Buenos Ayres, and presents an ample European and American bibliography.