52. Hall, Stone and Simpson: Epidemic of Pneumonia following Influenza at Camp Logan;—J. A. M. A., 1918, 71, 1986.
53. Hamilton and Leonard: Acquired Immunity to Influenza;—J. A. M. A., 1919, 72, 854.
54. Hamman, L. V.: Discussion on Influenza;—Bull. Johns Hopk. Hosp., 1919, 30, 112.
55. Hammond, Rolland, and Shore: Purulent Bronchitis;—Lancet, 1917, 193, 41.
56. Harris, D. T.: Some Observations on the Recent Influenza Epidemic;—Lancet, 1918, 195, 877.
57. Harris, J.: Influenza Occurring in Pregnant Women;—J. A. M. A., 1919, 72, 978.
58. Hedinger, E.: Zur Pathologie und Bacteriologie der Grippe;—Corr. Blatt f. Schweizer Aerzte, 1919, 49, 554.
59. Hewlett and Alberty: Influenza at a Navy Base Hospital in France;—J. A. M. A., 1918, 71, 1056.
60. Hirsch and McKinney: Epidemic of Bronchopneumonia at Camp Grant, Prel. Bact. Rep.;—J. A. M. A., 1918, 71, 1735.
61. Hirschbruch: Ueber die Ansteckende Lungenentzündung;—Deut. med. Wchnschr., 1918, 44, 935.