Abstract: New peptides are disclosed which have biological activity of the same type as known calcitonins and which do not have a leucine in position 19 or a glutamine in position 20. Both amino acids are omitted. Also resin peptides are disclosed which may be converted to peptides having such biological activity; and processes for producing said resin peptides and said calcitonin peptides.

Abstract: An intravenous immune globulin preparation having at least 99% pure globulin protein and an anticomplement activity of less than 0.10 C'50 units/mg IgG prepared by: precipitating impurities from Cohn Fraction II in an aqueous-alcohol medium at defined temperature and pH, removing the precipitated impurities, stabilizing the diluted solution with albumin, concentrating the solution and removing the alcohol therefrom. Also prepared by this method, an intravenous, hyperimmune globulin preparation having increased antibody titers to sixteen serospecific strains of Pseudomonas aeruginosa.