CPFEC'I% OF MAGNESIA ON VRlii ACID. l^$ 



rn pted«kctric polarity, capable of generating a siniili«' 

 polarity between tl>c elemeots of w^ter ; while iu ail elei-r 

 trical machines, and even in the Leydeu phial, tlie tw© 

 electricities are always separated from one amsther by «« 

 insulating body, as glass, air, resin, &c. Insulated e!ec* 

 tricity always acta at a distance, and i];;iides with great 

 swiftness over the stirface of conducting bodies : the gal- 

 vanic fluid on the contrary, which n»i«j:ht be more appro- 

 priately termed polar electricity, «cts on the same substances 

 only whex\ m contact, and by transfdrminjr them into secon- 

 dary piles. This annlog^' of uction at a distance and in Gratiutioa 

 contact is observed likewise between the attraction of the ^j^^^^^J^^'^^^^ 

 feenvenly bodies «nd chemical nfljnity ; which is the mor« jiity. 

 remarkable, as there is no inconsibtrncy in considering the 

 light, that proce?iHls fro«i those stars that form a pait of th-e 

 imi verse, as an effect of electricity. 



It ^pp<*ar8 to me probable, that, in the galvanic decom- Wlien ^ater 

 position of water, each of the two component principles o^l^. pru'.cmhfl 

 this liquid combin'cs intimately with the electric fluid of oombint? -with 

 that pole, by which it is attracted; and tiiat they ar^ botii ^^^j^j^J*^^'^*"*^ 

 c6nvefted into th« elastic state in 'C0nsequ^nc^e of thts com- 

 bination. If this were <iemon6trated, the lioht produced Hvnce^Tie 

 in the combustion of hidrogen gas would also be explained |'"^*^"" ^'''■"* 

 fey'the jiroitipt reunion «fth« twd ^leetnc flufidsj set fVe^r 



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rb L ^tih-^o '^3iii i<^ .'ini' . r - ^'•■'Hun^^iiqinc 



Ohiervtttions mthe Effects of Magnesia, in preventhgnn hi' 

 creased Formaimn of Uric Acid ; with some Ueniarks on 

 the Composition of the Urine. Vomrmmicattd (i// Mr. 

 William T. Brandi!, F.R.S., to the Society for the Im' > 

 provement of Animal CMmistrt/, and by them ./« iihe 



R. n<ytMfeV irt<:iuirie8l- ^If^'tfc^' fuactioni-^f • thecaioulnin 

 aVotbacHj^ftritl his discbvfery oiFliiililHS pn^iiw^ M^tiyt^- ccmt^LLnu 



♦ Abridged ftotn tte PhiU ?»aB«* fioT; 14LQ^^«13$U Ar ^,ef 



