that one solitary individual of them has as 

 yet come forward, to certify a conviction 

 of the usefulness of the composition. 



Under all the circumstances of the 

 case, some persons may think the author*s 

 success (his principal certificate being a- 

 bove suspicion,*) exceedingly difficult to 

 account for. It is admitted that such 

 certificate proves that appearances were, in 

 every respect, as there described ; but it 

 certainly has not proved by what means 

 they came to be so. — The application of 

 a plaister, and the healing of a wound, do 

 not go the length of proving that such 

 plaister effected the cure. 



But while we admit such certificate to 

 be above suspicion ; and likewise, that it 

 bears evident marks of both the integrity 

 and industry of the " very honourable per- 

 *' sons" who have signed it ; still, we can 



* Second Edition, page 449. 



