98 



Foot-and- Mouth Disease. 



contact in markets, &c., even when neither, food nor water has 

 been ' taken, makes it very probal)le that the virus may be 

 effective when inhaled. 



y.^^.;f .-*- 

 Fio. 3.— A A, two recent sores left by bursting of vesicles on the tongue. 



The most certain method of experimental infection is the 

 injection of the virus into a vein. Rubbing saliva from a 



