REPORT OF THE SECREJTARY GENERAL. 233 



The means by which infectious diseases are transmitted, and their extermina- 

 tion, by Alvah H. Doty. 

 The purification of water supplies, by Edwin O. Jordan. 

 The sanitation of the Panama Canal, by D. P. Reeder. 

 The significance of chemistry in water purification, by Edward Bartow. 

 Town and city planning, by Frederick Law Olmsted. 



SUBSECTION 5. 

 LABORATORY CONFERENCES. 



Accidn respiratoria del depressor cordis, by Teodoro Muhm. 



Anaphilaxis and its relation to immunity, by J- Bronfenbrenner. 



Anaphylatoxin and the mechanism of anaphylaxis, by Richard Weil. 



Cancer in plants, by Erwin F. Smith. 



Cancer problems in special biological groups : Fish tumors — Further obser- 

 vations on so-called carcinoma of the thyroid, by Harvey R. Gaylord. 



Ckemotherapeutic experiments on rat tumors, by Richard Weil. 



Experimental studies in heredity, by Maud Slye. 



Factors in immunity to cancer, by James B. Murphy and John J. Morton. 



Filariasis in the Americas, by Allen J. Smith. 



General biology of the protozoan life cycle, by Gary N. Calkins. 



General pathology and experimental cancer research, by James Ewing. 



General problems and tendencies in cancer research, by Leo Loeb. 



Hay fever and certain other local anaphylactic phenomena referable to the 

 respiratory mucous membranes, by A. Parker Kitchens and Claude P. 

 Brown. 



Immunity to transplantable neoplasms, by William H. Woglom. 



Nota sobre el tratamiento de la infeccion puerperal por los banos tibios 

 prolongados, by Aristides Fiallo Cabral. 



Nouveau precede pour la transfusion du sang, b'y Louis Agote. 



Radium in experimental cancer, by Francis Carter Wood. 



Radium in the treatment of cancer, by William Duane. 



Sero-diagnostic methods in cancer; reactions of Freund and of von Dungern, 

 by A. F. Coca. 



Teratoma de la region del tuber cinereum, by Guillermo A. Bosco. 



The application of chemical methods to the study of cancer, by Casimir Funk. 



The biological and medical significance of the intestinal flagellates, by Charles 

 At wood Kofoid. 



The classification of the parasitic amoebce of man, by Charles F. Craig. 



The mechanism and clinical significance of anaphylactic and pseudo -anaphy- 

 lactic skin reactions, by John A. Kolmer. 



