Mr. J. Glaisher on the Meteor of November 5, 1849. 381 



since Xx+it,y-\-v%=0 



identically. 



The expression (9.) when written thus, 



S.a,a4«5.S.a2a5a(S.ai«2a3-S.a«3«4— S.aa2«3-S.«ia3a4)1/j3\ 

 — S. «ia3«4. S. a2«4«5(S . aaia2 • S .awsa^ — S.aaCjag. S.a2«5<'') J 

 may without difficulty be transformed into 



S.a,«4«5.S.«2«5«-S.«2a4«3-S.«3«i«'| 



H-S.ai«3«4.S.a2a4a5.S.a«2a3.S.«jaa5 J * 

 which, when equated to zero, gives the relation 



S.«,«4a5 S.aaga^ _ S.aia4a<^.S.a«2*3 ( \ t^ \ 



S.«2«4a5 S.aajaj S.«2<*4^3«S.««ia3' 



The equation (9.) expresses the property of the Mystic 



Hexagram of Pascal, and (15.) that of the Anharmotnc Ratio 



of Chasles, as was explained in vol. xxix. pp. 118, 327 of this 



Journal. 



XLVII. On the Meteor of November 5, 1849. By James 

 Glaisher, Esq., F.R.S., F.R.A.S., and of the Royal Ob- 

 servatory, Greenwich. 



To the Editors of the Philosophical Magazine and Journal. 

 Gentlemen, 



IN the number of the Philosophical Magazine for February 

 1850 is a notice of a fine meteor seen by V. Fasel, Esq., 

 F.R.A.S., at Stone, on Nov. 5, 1849. This meteor was also 

 seen by R. L. Jones, Esq., F.R.A.S., and who wrote to me 

 from Chester on Nov. 6, describing it. As it is seldom that 

 a meteor can be so certainly identified as seen at two different 

 places, I beg to send you the following particulars, in the 

 hope that some other gentleman had the good fortune to see it 

 and to note its path. It is possible that the meteor seen by Mr. 

 Lowe at Nottingham on Nov. 5, at 6^ 20°*, also mentioned 

 in the same Number of the Magazine, may be the same meteor. 

 The following is Mr. Jones's account of the meteor : — 

 " I first saw it near the Pleiades, and by estimation (as I 

 could not see the time till I got home) at 6^ 10"" p.m. G.M.T. ; 

 it passed close by a Arietis, 5° or 6° below a Andromedae and 

 j3 Pegasi, and disappeared about 10^ above the four stars in 

 the head of the Dolphin, occupying about 5° in its transit; it 

 had a head composed of seven or eight small bluish-coloured 

 balls, and left a vivid trace of sparks behind it. That these 

 sparks were not the impression on the retina I am sure, as I 

 closed my eyes, looked on the ground, and on raising my eyes 

 again still saw them. They remained in view at least two 

 minutes, and seemed to be attracted together in three or four 

 masses, and the brightest part was near the meridian." 



