256 The Philippine Journal of Science isis 



Pig 9^. — This animal was a Berkshire sow and had been 

 hyperimmunized to hog-cholera virus and was later exposed to 

 rinderpest by contact. It contracted and ran a mild course of 

 the disease, recovering on December 5, 1914. 



This animal was again exposed to rinderpest January 23, 1915, 

 and these exposures have been continued up to date, covering 

 a period of six hundred sixty-five days. During this time the 

 pig has not shown any ill effects from these exposures, there 

 having been no temperature or physical reaction. 



Pig 266. — Recovered from rinderpest March 24, 1916. This 

 animal was kept in the shed one hundred sixty days with animals 

 sick with rinderpest and did not develop any ill effects from 

 these exposures. 



Pig 267. — Recovered from rinderpest April 2, 1916. This 

 animal was kept in the shed one hundred fifty-one days with 

 animals sick with rinderpest and did not develop any ill effects 

 from these exposures. 



Pig 289. — Recovered from rinderpest May 20, 1916. This an- 

 imal was kept in the shed one hundred three days with animals 

 sick with rinderpest and did not develop any ill effects from 

 these exposures. 



Pig 291.— Recovered from rinderpest May 13, 1916. This 

 animal was kept in the shed one hundred ten days with animals 

 sick with rinderpest and did not develop any ill effects from 

 these exposures. 



Pig 297. — Recovered from rinderpest June 28, 1916. This an- 

 imal was kept in the shed sixty-four days with animals sick 

 with rinderpest and did not develop any ill effects from these 

 exposures. 



Pig 301. — Recovered from rinderpest July 28, 1916. This an- 

 imal was kept in the shed thirty-three days with animals sick 

 with rinderpest and did not develop any ill effects from these 

 exposures. 



Pig 302. — Recovered from rinderpest June 8, 1916. This an- 

 imal was kept in the shed eighty-four days with animals sick 

 with rinderpest and did not develop any ill effects from these 

 exposures. 



Pig 155. — Recovered from rinderpest December 21, 1915. 

 This animal was kept in the shed two hundred fifty-four days 

 with animals sick with rinderpest and did not develop any ill 

 effects from these exposures. 



Pig 15 It. — Inoculated with 8 cubic centimeters of virulent rin- 

 derpest blood from bull 3995 on February 22, 1916. This an- 



