286 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [April 9, 



rocks standing vertically through the carboniferous rocks. A great 

 portion of the country between Muswell Brook and Mooroorundi is 

 comparatively level, and is generally excellent land. At the latter 

 place conical hills, of a trappean character, rise abruptly from the 

 plain-like valleys. One range, however (Wailand's Range), crosses 

 within a few miles of Mooroorundi, and is rendered remarkable by 

 the constant burning of a coal-seam in one of the hills, called Mount 

 Wingen. 



Mooroorundi is beautifully situated on the River Page, at the foot 

 of the Liverpool Range, having in view several tall peaks of basaltic 

 or trappean character, which may be seen ranging along the flank 

 of the hills, and rising above the rocks in which they had once 

 been enclosed. 



From Mooroorundi I began to ascend the Liverpool Range, and to 

 pass over crystalline rocks. Soon after crossing the Page River I 

 found a fragment of granite that had been brought down by that 

 stream ; a little higher slate-rocks began to appear ; and about four 

 miles from the Page, in a deep cutting made for the road, trap is 

 overlaid by slate at an angle of 15°. 



For a distance of thirty miles from this place, in a north and 

 westerly direction, I had been crossing a country of slate-rocks, but 

 they were so broken and deranged that I could not determine satis- 

 factorily any general angle of inclination ; but here I found a trap- 

 dyke between the slates inclined at an angle of 60°, and dipping to 

 the westward. A portion of the dyke seemed disposed to part into 

 polygonal blocks, similar to columnar basalt. Five miles further on, 

 quartz began to appear, and the slate-rocks presented a decided 

 strike and dip ; the former N. by W. and S. by E. (magnetic) ; the 

 dip 60° to west. 



Having reached the Hanging Rock, at Hookanville, I went through 

 the diggings there, and examined the rocks of the locality. I found 

 a quartz-vein near the top of the rock, from which the drift-gold in 

 the neighbouring creeks and gullies has, without doubt, been derived. 

 The strike of the quartz-vein corresponds with that of the slate — 

 north and south. Following down the Peel River to the Peel River 

 Company's Works, a distance of six or seven miles, the hills and 

 cliffs on each side of its course show very distinctly the position of 

 the rocks. They all stand vertically, and the strike is the same as 

 at the Hanging Rock. Dykes of porphyry and green-stone fre- 

 quently occur rising between the strata ; and serpentine occurs in 

 considerable variety. 



I was shown the works on the Peel River Company's property by 

 the captain of the mines, who kindly endeavoured to give me all the 

 information that I required. There has not been much done yet, 

 nor are the indications very promising. Several small quartz-veins 

 have been opened ; they all run east and west ; but range in a line 

 north and south of each other, and may probably be connected. 

 They are not perfect quartz-veins, but mere incrustations of crystals. 

 They lean over a few degrees to the north, and the gold is found on 



