X ADVERTISEMENT. 



tion, either in a feparate publication, or in the next fuc- 

 ceeding volume of their Tranfadions, or in both. 



IX. The unfuccefsful perfcrmances fnall remain under 

 confideration, and their authors be confidered as candidates 

 for the premium, for Jive years next fucceeding the time 

 of their prefentment ; except fuch performances as their 

 authors may, in the mean time, think fit to withdraw : 

 And the tjociety fliall annually publiih an abftraft of the 

 titles, objed; or fubjedt matter of the communications fo 

 under confideration, fuch only excepted as the Society ihall 

 think not worthy of public notice. 



X. The letters containing the names of authors whofe 

 performances fliall be rejedled, or which Ihall be found un- 

 fuccefsful after a trial of five years, fhall be burnt before 

 the Society v^ithout breaking the feals. 



XJ. In cafe there fiiould be a failure, in any year, of any 

 communication worthy of the propofed premium, there 

 will then be two premiums to be awarded in the next year. 

 liut no accumulation of premiums fhall entitle an author to 

 mere than one premium for any one difcovery, invention 

 or improvement. 



Xll. The premium fliall confifl: of an oval plate of folid 

 ftandard gold, of the value of T^en Guineas. On one fide 

 thereof (hall be neatly engraved a fliort Latin motto fuited 

 to the occafion together with thefe words, The premi- 

 um of I. H. De Magellan, of London, efldblijhed iti the 

 year 1 786. And on the other fide of the plate ihall be en- 

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



for his difcovery of — A. D. 



Trefident. And the feal of the Society fliall be annexed to 

 the faid golden plate, by a ribbon paifing through a fmall 

 hole near the lower edge thereof. 



Since 



