Dr. Walter Flight—On Meteorites. 63 
being met with. They vary in size from half an inch to more than 
two inches in length, are usually covered with a thin layer of 
graphite, sometimes with some daubreelite surrounding them, and 
one nodule, consisting of graphite, was found to inclose troilite, 
which had aggregated inside the graphite in a curious way, so that 
the section of the nodule suggested the outline of a holly-leaf. A 
sketch appended represents a section of the nodule of graphite, the 
shaded inclosed part representing the sulphide. Troilite is the only 
sulphide found in this meteorite, and, it need hardly be said, was 
not in the slightest degree magnetic. A specimen of pounded and 
dried mineral was digested with a quantity of carbon disulphide, 
which had been twice distilled, for a day and a half, and sulphur 
amounting to 0:0207 per cent. was dissolved. A portion chosen for 
analysis was found to possess the following composition :— 
I, ID ITI. TVA 
Insoluble part... 0°215 2°297 — — 
INO do) 9 SAAN Cee ei 62°150 63°613 — 
SMpWUn Gee ee OOcO4e — 36°207 © 36°250 
INTE oi Ses == 0-446 — — 
Wopmern is. 4!) ss _ 0-676 — -— 
@iloriie. sap yses — 1:130 — — 
or, as the mean of these determinations :— 
Fe S requires 
com = 63°613 - 63°64 
Sulphur = 36°333 36°36 
Copper... = Wore — 
Chlorine = 0-130 “— 
100°155 100:00 
The next mineral, the composition of which we have to consider, 
is that forming the prisms which, as we have already seen, are 
scattered throughout the mass of the nickel-iron, and form nearly 
one per cent. of its mass. They resist the action of hydrogen 
chloride and are only dissolved after long treatment with very strong 
acid ; they dissolve, on the other hand, easily in hydrogen nitrate. 
They exhibit strong magnetic characters. ‘They seem to be 
identical with the mineral to which Gustav Rose gave the name of 
rhabdite. They appear to form square prisms, and the terminal 
faces of the prism could rarely be met with. 
The prisms were exceedingly brittle, and were rarely, if ever, of 
their normal length. It was a difficult matter to obtain the prisms 
quite free from organic matter (dried varnish, etc.), but the following 
very pure material was at last obtained :— 
IL IDE TOL. Mean. (FesNi,)P. 
INvelcelo sc: <<) ae) «see eho — _ 48-9565 49-385 48°38 
Tron Soe Shoo. con. OOO, 39°519 38°540 38°242 38°23 
Phosphorus? %..) 0 (lsiOlO) ay 125860) 12645 12-950 13°39 
100-000 
The specific gravity of several specimens of the prisms gave num- 
bers varying from 6:326 to 6°78. 
A few years ago Professor Daubrée’ pointed out the great resem- 
1G. A. Daubrée, Comptes rendus, lxxiv., 1427; and M. Sidot, Comptes rendus, 
Ixxiv.,, 1425. 
