612 
APPENDIX. 
[C. 
Melville Bay. — Granite^ composed of grey and some- 
what bluish felspar, dark brown mica, and a little quartz ; 
containing minute disseminated specks of molyhdenay and 
indistinct crystals of pale red garnet. 
Red Cliffs, south-west of Arnhem Bay ; — on the line of 
the first chain of islands mentioned by Captain Flinders. 
(See the Map, p. 600, fig. 3.) — Friable conglomerate, of a 
full brick-red colour, consisting of minute grains of quartz, 
with a large proportion of ochreous matter. 
Mallison’s Island. (Map, p. 600, fig. 4.) — The cliffs of 
this island are composed of a fissile primitive rock, on which 
sand-stone reposes in regular beds. The specimen of the 
former resembles gneiss, or mica slate, near the contact with 
granite : the sand-stone is thick-slaty, quartzose, of a reddish 
hue, with mica disseminated on the surfaces of the joints; 
and one face of the specimen is incrusted with quartz crys- 
tals, thinly coated with botryoidal hematite. Light grey 
quartzose sand-stone of a fine grain, with a thin coating of 
brown hematite, was also found in this island : — And a 
breccia, consisting of angular fragments of sandstone, ce- 
mented by thin, vein-like, coatings of dark brown hema- 
tite, was found there, in loose blocks at the bottom of per- 
pendicular cliffs. — The specimen of this breccia is attached 
to a plate of granular quartz, and may possibly have been 
part of a vein. 
The shore of Inglis’s Island, the largest of the English 
Company’s Range, (2. 2. 2. in the Map, p. 600,) is formed 
of flat beds, of a slaty argillaceous rock, which breaks into 
rhomboidal fragments ; but the specimen is indistinct. Fer- 
ruginous masses, probably consisting of brown hematite, 
come also from this island. 
