6 Short History op Infectious Anemia. 



IV. In April 1913 a project of Law for the Preven- 

 tion of Infectious Anemia and rules therewith connected 

 were again discussed and amended (vide of the Preven- 

 tive Methods on p. 51). 



V. In September 1913 the Report upon the Results 

 obtained by the Special Committee for Investigation of 

 Infectious Anemia of Horse was discussed, revised and 

 supplemented by the Committee. 



The investigation of the Committee lasted for four 

 years and ten months, extending from July 1909 to March 

 1914. Animals used for experiments by the Committee 

 numbered over a thousand ; 980 horses, 1 donkey, 7 

 calves, 5 goats, 6 sheep, 7 pigs and a few other small 

 animals. The entire expenditure amounted to over 

 80,000 yen. 



II. SHORT HISTORY OF THE APPEARANCES 



AND SPREAD OF INFECTIOUS ANEMIA 



AMONG HORSES. 



It is certain that in olden times infectious anemia 

 did not exist among Japanese horses, but we have at 

 present no way of ascertaining when and how out- 

 break of the disease took place for the first time in this 

 country. Usually the appearance of the disease becomes 

 known to the public at the time when it has already been 

 spreading for several years to a considerable area, out- 

 of-the-way pasturing districts among mountains being 

 first invaded, where ignorant people totally lack the 

 knowledge of preventive methods. 



From as many traditions and other data as we 

 could gather, we can say with a high degree of 

 probability that the first authentic record of the out- 



