1C6 



STATE BOARD OF AGRICULTURE. 



Thus all pigs hyperimmunlzed with 5 hr. 30 cc. virus NaCl produced 

 sera of good potency. 



5 HR. 35 cc. VIRUS XaCl. 



Immune pig No. 34.5, wt. 120 lbs., was hvperimmunized by the quick 

 subcutaneous method by injecting 10 cc. per lb. of body wt. of 5 hr. 

 35 cc. virus ]S'aCl from virus pig No. 493. 



Autopsy of virus pig No. 493 : Few petechiae on kidneys. Spleen en- 

 larged and hemorrhagic. Inguinal and sublumbal glands hemorrhagic. 

 Lungs hemorrhagic. Heart and liver normal. 



Hyperimmune No. 320 was bled 3 times from tail, then killed, 3200 cc. 

 of serum being secured, and tested as follows : 



5 HR. 40 CC. VIRVS NaCl. 



Immune pig -No. 320, wt. 100 lbs., was liyperimmunized by the quick 

 subcutaneous method by injer-ting 10 cc. per lb. of body wt. of 5 hr. 40 

 cc. ^irus NaCl from virus pig No. 454. 



Autopsy of virus pig No. 454 : Numerous ptetechiae on kidneys. Lymph 

 glands enlarged and congested. Spleen enlarged and hemorrhagic. 

 Lungs hemorrhagic. Heart normal. Intestines congested. Liver con- 

 gested. 



Hyperimmune No. 320 was bled 3 times from tail, then killed, 3200 cc. 

 of serum being secured. Autojisy of this hyper, showed ^^rus to be well- 

 absorbed and all organs normal. Sei-um secured was tested a^^ follows: 



