THE JOURNAL OF IMMUNOLOGY Vol. XXVI JANUARY, 1934 No. 1 PUBLISHED MONTHLY BY THE AMERICAN ASSOCIATION OF IMMUNOLOOIS'r8 ADVISORY BOARD SIMON FLEXNER ROBBRT MUIR THEOBALD SMITH New York. N. Y. Gl~w, 8ootland Prineeton, N. J. LUDVIG HEKTOEN G. H. F. NUTTALL F. G. NovT Chieal~o.Ill. C&mbridp, England Ann Arbor, Mioh. KARL LANDSTEINER WILLIAM H. PARK WILLIAM H. WELCH New York, N. Y. New York. N. Y. B,dtimore, Md. A. E. WRIGHT London, Enw_lAnd CONTENTS JULIA MEHLMAN AND BEATRICE CARRIER SEEGAL. Passive Sen- sitization of the Guinea Pig with Rabbit and Horse Anti- Pneumococcus Type 1 Serums ........................... 1 J. B. GUNNISO~. Studies on the Antigenic Substances of Clos- tridium Parabotulinum. II ............................... 17 AUGUSTUS WADSWORTH, ELIZABETH MALTANER AND FRANK MAL- TANER. A Study of the Antigenic Properties of Lecithin and Cephalin ............................................... 25 F. L. SULLIVAN, E. F. NECKERMANN AND PAUL R. CANNON. The Localization and Fate of Bacteria in the Tissues ........... 49 ROBERT M. PIKE. The Depression of Phagocytosis by Products of Staphylococci ........................................ 69 Im~M THE WILLIAMS & WILKINS COMPANY BALTIMORE, U. S. A. Made in United 8tatu of America THE JOURNAL OF IMMUNOLOGY EDITED BY ARTHUR F. COCA AND JOHN C. TORREY BOARD OF EDITORS J. F. AND]$RSON DENNIS EMBLETON W.H. MANWARING New Brunswick, N.J. London, England Leland Stanford Jr, Univ. JosN AUIR L.W. FAMULENER J. MCINTOSH A. BRmNLSt, Louis St. Luke's Hospital, No Y. London, England Townsville, Quee~land, J. G, FITZGERALD C.J. MARTIN Australia University of Toronto London, England WILLIAM W. FORD J. BRONFENBR]$NNmRSt. Loni8 M.J. ROSENAU C. H. BROWNING Johns Hopkins University Harvard University Glaagow, Scotland F, P. GAT J. HENDERSON SMITH WILLIAM BULLOCH Coil of Phys. & Surg., N.Y. London, England London, England J.W. JOBLING R.P. STRONG RuFuS I. COLE Coll. of Phys. & Surg., N.Y. Harvard University Rockefeller Imltituto H. R. DEz~ JOHN A. KOLMER F.H. TEALE University of Cambridge, University of Pennsylvania London, England Cambridge. England PRESTON KTE8 H.G. WELLS GEORGES DREYJR University of Chicago University of Chicago Oxford, England WILLIAM J. ELSER J.C.G. LEDINGHAM HANS ZINSSER Cornell University London, England Harvard University THE AMERICAN ASSOCIATION OF IMMUNOLOGISTS OFFICERS AND COUNCIL Dr. Thomas M. Rivers, President PAST PRESIDENTS Rockefeller Institute, Dr. James W. Jobling 66th Street and York Avenue, Dr. John A. Kolmer New York City Dr. William H. Park Dr. Arthur F. Coca, Sex'y-Treas. Dr. G. W. McCoy Pearl River Dr. Rufus I. Cole New York Dr. Hans Zinsser Dr. Richard Weft Dr. A. B. Wadsworth Dr. Frederick P. Gay Dr. A. R. Dochez Dr. F. G. Novy Dr. Arthur F. Coca Dr. H. Gideon Wells Dr. Stanbope Bayne-Jones Dr. W.H. Manwaring Dr. Oswald T. Avery Dr. Ludvig Hektoen Dr. Eugene L. Opie Dr. Karl Landsteiner Enbzred ~, ~cond-els~ matt~ February 21, 1916, at the Post Office at Baltimore, Maryland, under the act of March 3, 1879. (~Opyright, 1934, by The Wi_l!~mm-• Wille~n$Company .