DIFFERENCE IN SUSCEPTIBILITY TO CATTLE PLAGUE. 



Test L 



427- 



Mve bullocks, numbered 1^ 2, 3, 4 and 5, natives of the Island of 

 Sibuyan, received 0.5 cubic centimeter of virulent blood each. Animal 

 No. 1 was used as control, ISTos. 2, 3, 4 and 5 received 25, 50, 75 and 

 100 cubic centimeters of anticattle-plague serum, respectively. 



Table L 



No. hi animal. 



Quantity 

 of V. B. 



Quantity 

 of serum. 



Results. 



Died. 



Lived. 



Lived. 



Lived. 



Lived. 



i 



1 _ _ 



cc. 



0.5 

 .5 

 .5 

 . 5 

 . 5 



cc. 



None. 

 25 

 .50 



75 

 100 



'> 



3 



■1 



5 



Table 1 shows the results obtained. All animals lived except No. 

 1, which was used as a control. (See charts 1 to 5.) 



Test 2. 



On the 15th day of March, 1909, Sibuyan bullocks Nos. 6, 7, 8 and 

 9 were given 0.5 cubic centimeter of virulent blood each. Animal No. 

 6 was used as control, Nos. 7, 8 and 9 were given 25, 50 and 100 cubic 

 centimeters of serum No. 767, respectively. 



Table 2. 



No. of animal. 



Quantity 

 of V. B. 



Quantity 

 of serum. 



Results. 



6 



cc. 

 0.5 

 .5 



.5 

 .5 



cc. 



None. 



25 



50 



100 



Died. 

 Died. 

 Lived. 

 Lived. 



8^— 



9 





All animals reacted well after inoculation and, as is shown in Table 

 2, Nos. 6 and 7 died, Nos. 8 and 9 lived. (See charts 6 to 9.) 



Test 3. 



Serum No. 810 was tested on five bullocks, Nos. 10, 11, 12, 13 and 

 14, which came from the Batanes group of islands. Each animal re- 

 ceived 0.5 cubic centimeter of virulent blood. No. 10 acted as control 

 ■and Nos. 11, 12, 13 and 14 received 50, 75, 100 and 125 cubic centi- 

 meters of senim, respectively. 



