Vll ADVERTISEMENT. 



XI. In cafe there fhoiild be a failure, in any year, of any 

 communication worthy of the propofed premium, there 

 will then be two premiuip.s to be awarded in the next year. 

 But no accumulation of premiums fhall entitle an author to 

 more than one premium for any one difcovery, invention 

 or improvement. 



XU . The premium fliall confift of an oval plate of folid 

 flandard gold, of the value of Ten Guineas. On one fide 

 thereof fhall be neatly engraved a fhort Latin motto fuited 

 to the occafion together with thefe words, The premi- 

 um of \. H. De Magellan, of London, eJiabliJJoed in the 

 year i 786. And on the other fide of the plate fhall be en- 

 graved thefe words, Awarded by the A. P. S. to 



for his difcovery of A. D. 



Prejident. And the feal of the Society fliall be annexed 

 to the faid golden plate, by a ribbon paffing through a 

 imall hole near the lower edge thereof. 



The 



