400 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1946 
stupendous task the size of which only those who are familiar with 
the knowledge already gained can begin to appreciate. Yet the 
progress which has been achieved in this fascinating search makes one 
await with the keenest interest the discoveries of tomorrow. 
REFERENCES 
1. Jones, W. H. S., Malaria and Greek History, Manchester University Press, 
Manchester, England, 1909. 
2. CASTIGLIONI, ArTURO, A history of medicine, Alfred A. Knopf, New York, 
1941. 
8. GARRISON, FietpInc, H., An introduction to the history of medicine, W. B. 
Saunders Co., Philadelphia, 1924. 
4, HAAGENSEN, C. D., and Lioyp, WynpHAm E. B., A hundred years of medicine, 
Sheridan House, New York, 1948. 
5. Hurr, CLay G., Insects, disease and modern transportation, in Medicine and 
the war, University of Chicago Press, Chicago, 1943. 
6. RIcKETTs, Henry T., Aviation medicine, in Medicine and the war, University of 
Chicago Press, Chicago, 1948. 
