692 BIOLOGY OF PNEUMOCOCCUS 



titers of .other antibodies in Type I antipneumococcus serum. J. 

 Immunol., 21(5) :341, Nov. 1931 378,409, 583, 585 



408. Felton, L. D. The use of ethyl alcohol as precipitant in the con- 

 centration of antipneumococcus serum. J. Immunol., 21(5): 357, 



Nov. 1931. 412, 549, 553, 563 



409. Felton, L. D. Dissociation of the specific protein precipitate of 

 antipneumococcus horse serum, and a comparison with a protein 

 isolated by chemical means from this immune serum. (Abstract.) 

 J. Bact., 23(1): 105, Jan. 1932. 



410. Felton, L. D. Dissociation of the specific protein precipitate of 

 antipneumococcus horse serum, and a comparison with a protein 

 isolated by chemical means from this immune serum. J. Immu- 

 nol., 22(6) :453, June 1932 554, 555 



411. Felton, L. D. Studies on virulence. IV. Influence on virulence 

 of pneumococci of growth on various media. J. Exper. Med., 56 



(1) : 13, July 1932 204, 210 



412. Felton, L. D. Studies on virulence. V. The effect of oxygen, 

 nitrogen, and carbon dioxide on the virulence of growing pneumo- 

 cocci. J. Exper. Med., 56(1) :27, July 1932 204, 210 



413. Felton, L. D. Active immunization of white mice by a nonpoly- 

 saccharide and probably non-protein derivative of the pneumococ- 



cus. J. Immunol., 23(5) : 405, Nov. 1932 275 



414. Felton, L. D. Studies on the protective substance in antipneu- 

 mococcus serum. Study 21. Comparison of certain characteristics 

 of the water-insoluble proteins of antipneumococcus and normal 

 horse serum. (Abstract.) J. Bact., 25(1) :76, Jan. 1933. 



415. Felton, L. D. Distribution of the immunizing antigen in the 

 pneumococcus. (Abstract.) J. Bact., 27(1) : 90, Jan. 1934. 



416. Felton, L. D. The effect of heat on alkaline and acid solutions 

 of the immunizing substance of pneumococci Type I and Type II. 

 (Abstract.) J. Immunol., 26(4) :336, Apr. 1934 276, 289 



417. Felton, L. D. Studies on the immunizing substances in pneumo- 

 cocci. II. Separation of the organism into acid soluble and acid 

 insoluble fractions. J. Immunol., 27(4) : 379, Oct. 1934 275, 276, 485 



418. Felton, L. D. The fraction of the pneumococcus antigenic for 

 human beings. (Abstract.) J. Bact., 29(1) :55, Jan. 1935 501 



419. Felton, L. D., and Bailey, G. H. Biologic significance of the 

 soluble specific substances of pneumococci. J. Infect. Dis., 38(2): 



131, Feb. 1926 351, 352, 419, 575 



420. Felton, L. D., and Bailey, G. H. The specific precipitates ob- 

 tained from antipneumococcus serum and antibody solution by the 

 soluble specific substance of pneumococci. J. Infect. Dis., 38(2): 



145, Feb. 1926 370, 554 



421. Felton, L. D., and Bailey, G. H. The immunological character- 

 istics of a water-insoluble protein in Type I antipneumococcus 



sera. J. Immunol., 11 (3) : 197, Mar. 1926 550 



422. Felton, L. D., and Dougherty, K. M. Study of the action of 



