I. Phenols as Preservatives of Antipneumococcic Serum ... by Carl Voegtlin. II. The Nature of Contaminations of Biological Products, by I.A. Bengtson. III. Studies in Preservatives of Biological Products: The Effects of Certain Substances on Organisms Found in Biological Products, by M.H. Neill. IV. The Effect of Ether on Tetanus Spores and on Other ... by H.B. Corbitt. [U.S. Hygienic Laboratory Bulletin No. 112. April 1918.].
