380 On the Decomposition of 
near it of the third class. Five more in view, differently 
dispersed about the quintuple. 
P.V. 300.) This star was obs. by Piazzi when looking for 
231 of Mayer, which he could not find. 
64 y. 4 Orionis.) FI. R. A. requires —45'. Bode calls this x. 3. 
62 »%. 3 Orionis.) Bode calls this x. 4. 
P. VY. 328.) The place of Bode’s 256 Orionis does not agree 
very well with this, the R. A. being+2’ 51”: Decl.+41”. 
M. 234.) Mayer’s position is derived from an imperfect obser- 
vation. 
4 Geminorum.) Mayer’s R.A. requires—17":4, Deel. —12"'3 ; 
it was obs. by him but once. 
Anon. R. A. 89°41’) Hist. Cél. p. 262. Double. Hers. VI. 114. 
** About 4 degree s. preceding oP Orionis, nearly towards 
A. Considerably unequal. L. p.r.; S.d. Distance 90" wt 
Pos. 22°] s. following.” 
*,* With reference to what is stated at page 127 of the pre- 
sent Volume, i it may be proper to mention, that the Zodiacal Stars 
of Wollasten’s Catalogue, which are omitted ip this, consist of 
such as are not now to be seen in the heavens, and which there 
is good reason to suppose never to have existed, but to have been 
inserted in the original catalogues through miscalculation. The 
list of such stars is deferred until the completion of the present 
Catalogue. 
P.S. The compiler takes the liberty of mentioning, that 
should any person be in possession of unpublished materials 
which mav serve to enrich this Zodiacal Catalogue, although not 
of sufficient importance for separate publication; he shall be 
happy to avail himself of them, on their being communicated 
through the Editor. 
LXXVIII. On the Decomposition of Metallic Salts by the 
Magnet. By Mr. J. Murray. 
Is my Paper ‘on the decomposition of metallic salts by the 
magnet” transmitted to the Royal Society of Edinburgh I re- 
ferred to experiments which seemed to me unequivocally to prove 
the influence of magnetism in the decomposition of metallic salts 
—I continue to receive renewed evidence of the truth of my con- 
clusions—I shall here take leave to select a few of the numerous 
experiments repeated in the course of my researches, and it would, 
methinks, be difficult to summon any objection to them ; I con- 
fess that they appear to me quite satisfactory. 
A solution of permuriate of mercury was by the magnet soon 
reduced into running or metallic mercury, and the supematant 
fluid was not affected by the albumen of the egg. 
: Hence, 
