130 Note on the CranhouTiie Meteorite. 



is very annoying, after the reflector, and the spurious disc is 

 very large ; image larger than in the great telescope, and 

 definition decidedly worse ; even y not visible. 



Jan. ] bth. — Micrometer measures made ; the results of 

 which are given in jig. 6. The Companion iV / in Lassel's 

 observations just seen in P T proves to be Alvan Clark's 

 comes, not Lassell's companion, which is the faint star 

 nearly following, and 1' 0" distant, too indistinct to-night for 

 measures, Le Sueur's y is Lassell's d. 



Jan. I7th. — "Lassell's and Alvan Clark's companion 

 visible ; /3 again suspected." 



Jan. 18th.- — -Both companions visible, and /8 suspected 

 again by Mr. Ellery and myself 



Feb. 2nd. — Sirius definition indiflferent. A. Clark's com- 

 panion, very plain, also d Lassell's companion (fig. 7.) with 

 care also. I see v v f star at g, another near /. Sometimes 

 suspect one near AGO; power 520. Group also near K. 



Feb. Srd. — Definition pretty good ; d, e, Le Sueur's e, A. 

 Clark's c, K, 8zc, distinctly visible ; /, g, i, sometimes h not 

 at all. 



Feb. 4th. — Sirius ; power 230 ; definition tolerable ; e f 

 and £/ occasionally visible; h and i not so. Power, 520; 

 same result. 



Feb. 13. AR. and Decl" micrometer measures of Sirius and 

 companion, during which my eyes gave way, and I was 

 unable to observe again so bright an object, until — 



2Srd Feb., 1872, when I note positions of stars near Sirius 

 as (fig. 8). All visible (/ m and g) by glimpses. 



From which it may be inferred that little doubt exists as 

 to the existence of all but /3 and in, and the probabilities 

 are in favour of their actual existence as noted. 



Art. XLIL — Note on the Cranbourne Meteorite. 

 By Sydney Gibbons. 



[Bead lOth June, 1872.] 

 This was a short note embodying some recent observations 

 by Berthelot, who reports in the Comptes Rendus,* that the 

 Cranbourne Meteoiite contains, among other things, frag- 

 ments of pyrites, and a certain quantity of amorphous 

 carbon, which was separated in the form of a greenish 



* Ixxiii., 494. 



