XI, B, 5 



Boynton: Rinderpest in Swine 



247 



In experiment 30 the bull failed to contract the disease when 

 inoculated with 0.5 cubic centimeter of blood. Although this 

 is a very small amount, yet such a quantity is usually sufficient 

 to give the disease, and a much smaller quantity has been demon- 

 strated to transfer the disease when the virulent blood was taken 

 from a sick bull.(i) 



In experiment 32 cow 3958 was inoculated with blood from 

 pig 217 to ascertain whether the pig had contracted rinderpest 

 or hog cholera in the quarantine shed, the result showing that 

 the pig had contracted rinderpest. 



Oc^oderW/5. fxper/menf- 31 BuU3639. 



3 4 s 6 r e 9 lO n /B /3 /4 /s 











A 1 - _ _ _ 



41 







L. 



A (\ _ _ It S _ _ 



4^ -^--^ ^A *■ i 



t A fr-P t t 



1 ^ I \ k 



+ *lt ^ J h4 S 



TO ^ A , \l\ 1 fJ § - -- 



oy ±-^ A'^-, •I^-jr-lt 



, t ' I I A ": " 



+ t Kitl 1 nA K 



^ \ J\ J I V \ ^ 



IR \ \J \ I I L-r 



oo 3 J ifeff ^ Z 



^Vm1s» ftjj > 



f jj^ .^1 jj 



i^ *^ 



IT t't -^i S 



rt tl 1^ '^i ^ 



t< ?1 K ^ ^ 1^ 



|g -^1 5 1 1 



Fig. 6. Temperature chart of bull 3839 inoculated with blood from pig. 



CATTLE INOCULATED WITH A MIXTURE OF BLOOD FROM PIGS AND 

 CATTLE SICK WITH RINDERPEST 



The following experiment was designed to furnish informa- 

 tion regarding the possibility of cattle contracting rinderpest 

 when inoculated with a mixture of blood from pigs and cattle 

 sick with rinderpest, as it was desired in several instances to 

 obtain more blood for immunization work than would be fur- 

 nished by one bull. Thus, if the virus maintained its potency 

 by mixing pig and cattle blood, pigs frequently could be bled to 

 death to supply the demand. 



EXPERIMENT 33 



Cow 3987. — Known history prior to the experiment: Native 

 Batanes cow, 1 year and 2 months old, received at the labor- 

 atory and placed in quarantine October 23, 1915. This animal 



