1815.] Magnet'ical Ohservations. 131 



how the last (disengages an excess of oxygen to combine with the 

 acids.* 



But I have allowed myself perhaps to be carried too far by ideas 

 which have spontaneously followed each other in my mind. I 

 Jiope, however, that I have drawn the attention of the reader to 

 circumstances which may be of some importance in the exami- 

 nation of chemical proportions, as well as in the theory of chemistry 

 in general. 



Article XI. 

 Magnet'ical Observations at Hackney Wick. By Col. Beaufoy. 



Latitude, 31° 32' 40-3" North. Longitude West in Time 6"tVo-' 



1814. 



1814. 



Mi-an of 



Observations 



ID Dec. 



Ditto in Not. 



f Morning 

 •<Noon 

 ( Kveuing 

 r Morning 

 < Noon 

 (_ livening 



at Sh 44' Variation 24" 18' 



at 1 30 Ditto 24 20 



at — — Ditto — — 



ut 8 41 Ditto S4 16 



at 1 40 Ditto 24 20 



at — — Ditto — — 



02" J 

 36 \ 



— Not obs, 

 20 

 37 



— Not obs. 



West. 



West. 



• I must make a rrinarli lirre. It Ims already struck nie more tlinn once, that 

 Dr. HTZoliHH and tiiysclf r( asiin from iliilcMcnt principles; for he lias frequently 

 |iiiint('d out farts which he ^aid were incim'.i'.tcnt with the theory of niurinlic acid 

 by Davy, when I myself could rirtt perceive anv inconsistency in them. Kven in 

 the present example, 1 feel myiclf in the same predicament. 1 am unable to see 

 any iiironsi<<li;n(y bet ween the fads established lespectins the submuriales, and 

 • he opinions I entertain rc-«pe(.lin;; chlorine. Hut if Dr. Uerzeliiis will stale thi« 

 incoiikiiiteiicy in plain term^, to that 1 can see T\hat he means, 1 shall examine it, 

 and if I iiiid It (u be Ki be tays, I shall be very ready tu cmbrure bU 

 opinion.— T. 



I 2 



