213 
on the Structure of the Tongue, &c. 
disposition by which one of them is attacked, does not so readily 
communicate itself to the others ; and the part may be removed, 
with a greater degree of security against a future recurrence of 
the disease, than in other cases where this malady attacks a 
portion of a large gland, the whole of which may be under the 
influence of the poison, long before there is any appearance of 
its being diseased. 
