Variations in the sensitivity of escherichia coli to ionizing radiations during the growth cycle.

Variations in the Sensitivity of Escherichia coli to Ionizing Radiations during the Growth Cycle. G. E. STAPLETON ............................................ 357-362 Study of Toxins of Clostridium botulinum. III. Relation of Autolysis to Toxin Production. DANIEL A. BOROFF............................................. 363-367 The Stimulation of Germination and Respiration of Bacillus megaterium Spores by Manganese, L-Alanine and Heat. HILLEL S. LEVINSON AND MILDRED T. HYATT. 368-374 Studies on the Growth of Histoplasma capsulatum. II. Growth of the Yeast Phase on Agar Media. LEO PINE .................................................. 375-381 Studies on the Klebsiella-Aerobacter Group of Bacteria. P. R. EDWARDS AND MARY A. FIFE............................................................. 382-390 Propagation of Herpes Simplex Virus in Tissue Cultures of Rabbit Kidney. JosE SOSA-MARTINEZ, LuIs GUTIERREZ-VILLEGAS, AND RAQUEL M. SOSA.......... 391-399 Studies with Microaerophilic Actinomycetes. II. Serological Groups as Determined by the Reciprocal Agglutinin Adsorption Technique. JOHN M. SLACK, RALPH G. SPEARS, WILLIAM G. SNODGRASS, AND ROBERT J. KUCHLER.............. 400-404 Production of Trans-L-Epoxysuccinic Acid by Fungi and its Microbiological Conversion to Meso-Tartaric Acid. WILLIAM R. MARTIN AND J. W. FOSTER...... 405-414 Effect of Dietary Fatty Acids and Protein Intake on Experimental Tuberculosis. LOYD W. HEDGECOCK....................................................... 415-419 D-Amino Acid Transamination in Bacillus anthracis. CURTIS B. THORNE AND DOROTHY M. MOLNAR...................................................... 420-426 Studies of Budding and Cell Wall Structure of Yeast. Electron Microscopy of Thin Sections. HILDA D. AGAR AND H. C. DOUGLAS......................... 427-434 Pathogenesis of Candida albicans Infection following Antibiotic Therapy. II. Further Studies of the Effect of Antibiotics in the In Vitro Growth of Candida albicans. M. HUPPERT AND J. CAZIN, JR..................................... 435-439 Pathogenesis of Candida albicans Infection following Antibiotic Therapy. III. The Effect of Antibiotics on the Incidence of Can.dida albicans in the Intestinal Tract of Mice. M. HUPPERT, J. CAZIN, JR., AND H. SMITH, JR................. 440-447 Spectrophotometric Characterization of Neisseria Pigments. H. C. ELLINGHAUSEN, JR., AND M. J. PELCZAR, JR................................................. 448-453 Ploidy Studies on the Large Cells of Micrococcus aureus. J. B. CLARK AND R. B. WEBB...................................................................... 454-463 Biotin as a Growth Requirement for Blastomyces dermatitidis. W. J. HALLIDAY AND ELIZABETH MCCOY........ .. ...... ... .................................. 464-468 The Metabolism of Phytopathogenic Bacteria. I. Comparative Studies on the Metabolism of Representative Species. H. KATZNELSON ..................... 469-475 Phenylserine Studies. III. Microbiological Effects of Ring-Substituted ChloroAnalogs of Phenylserine. CAROL M. VOLKMANN AND ERNEST BEERSTECHER, JR......................................................................... 476-480 Notes: Relationship of Coagulase and Urease in Micrococcus pyogenes. MATTHEW H. FUSILLO AND WILLIAM J. JAFFURS ........................................ 481 The Nuclear Cytology of Salmonella typhosa. EDWARD J. MINSAVAGE AND EDWARD D. DELAMATER ................................................. 482-483 Notes on Bacteroides melaninogenicus. GEORGIA SENOS AND LIDA H. MATTMAN. 483 An Improved Technique for Staining Red Halophilic Bacteria. H. P. DUSSAULT 484-485 A Simplified Device for Continuous Growth of Microorganisms. BORIS ROTMAN. 485-486 A Bacteriophage for Azotobacter. VICTOR MONSOUR, ORVILLE WYSS, AND DOUGLAS S. KELLOGG, JR............................................... 486-487 V The Effect of Subtilin on Heat-Activated and Severely Heated Spores of a Putrefactive Anaerobic Bacterium. R. T. O'BRIEN AND DUDLEY S. TITUS.... 487-488 Questionable Adaptations of Cultures to Higher Temperatures. A Correction. NATHAN R. SMITH AND RUTH E. GORDON ................................. 488-489 Instructions to Authors ............................................................ 3-4