Foot -a ad- Mouth Disease. 



93 



very similar to tliat of Great Britain. Both in this country 

 and in Denmark the disease has on various occasions broken 

 out in places not far from the coast, and the fact has led to 

 the surmise that the ' virus may be introduced with birds 

 which have crossed the North Sea. Quite recently an opinion 



Fig. 1.— a and B, two large vesicles on the tongue whicb were unruptured at the 

 time when the animal was killed. 



held by some of the older writers on the subjecti has been 

 revived, viz., that the virus may actually be carried for imany 

 miles in the atmos])here. Although it may be unjustifiable to 

 deny this possibility, it must' be admitted that the numerous 

 occasions on which in this and other countries outbreaks have 



