1818.] Proceedi7igs of Philosophical Societies. 67 



P S"f»; In J he m J emor y of ™™, no invention, and no work 

 whether addressed to the imagination or to the understand^' 

 ever produced such an effect. A universal mania SSSSSE 

 ment seized all classes, from the lowest to the highest, from the 

 most ignorant to the most learned, and every pfrson not only 



Idd'ed to fig^S*** ^ a MW ^ had be - 



If such an instrument had ever been known before a similar 



sensation most have been excited, and it wonld not have been 



"ch trof l U1 , ty f ° f W"? ' ea ™ d a " d «» Mf honest to 

 hT?o,K° L* 6 ,^ 1 !'™. ! ?» — "on among the rabbrsh of 



the 16th and 17th centuries. 



Article X. 



Proceedings of Philosophical Societies. 



ROYAL SOCIETY. 



May 28.— A paper, by John Pond, Esq. Astronomer Roval 

 was read, on the parallax of the fixed stars in SHscension 

 The author stated that this paper was an annendiv \ I f 7 

 one o n the subject ^ P iyid -- S ^ a former 



iTrTn rta, n StarS J Ult0 tW0 P arts > acco ^ng as they were" 

 made what he calls incidentally or according what ,s termed thf 



Z I°i Par ,f ^ ' a f f n ° ^ reater differe »^ was ob enable in 

 the latter than in the former case, it is concluded that the naral 

 lax is not so considerable as to be sensible P 1_ 



sahsErc'ury^- D ° n ° Van ' ™ ^ ^ ° n the ° Xldes a »* 



^-^nTrSs^s ^ss 



oxygen. These lie supposes to be the only oxides of mere,!™ 



J« C 4 ° rr 7° nd,ng 1° '"I- b '?f k ' * oth - *> * d '>' 



Jwwe 4.— A paper, by Sir Ev. Home Bart V P R c 



read, containing an account of the tenhoftZL u ^ WaS 

 eted Xe, r^r^hViS^ oe'L " S^, 



cft'tTaodl-O+of r, S phu, PP0Se '' * bC C ° mp0Sed °' 8a * P-' s 

 A paper was also read containing an account of some experi- 



