Influenza. 1, Experiments upon volunteers to determine cause and mode of spread of influenza, Boston, Nov. and Dec. 1918, by M. J. Rosenau, W. J. Keegan, Joseph Goldberger, and G. C. Lake; 2, Experiments upon volunteers to determine cause and mode of spread of influenza, San Francisco, Nov. and Dec. 1918, by G. W. McCoy and DeWayne Richey; 3, Experiments upon volunteers to determine cause and mode of spread of influenza, Boston, Feb. and Mar. 1919, by M. J. Rosenau, W. J. Keegan, DeWayne Richey, G. W. McCoy, Joseph Goldberger, J. P. Leake, and G. C. Lake.