Some experiences and problems in treating renal insufficiency: I. Extracorporeal dialysis of the blood in vivo in cases of uremia; 22 treatments on 18 cases. II. Fluid balance problems in cases of acute oliguria; anuria due to acute nephritis, incompatible blood transfusions lower-nephron nephrosis and so on i. a. illustrating the risks of excessive electrolyte-fluid supply and the i. a. illustrating the risks of the modern electrolyte; fluid therapy and the importance of continual weight control.