Scientific Inklligence. — Geology. 373 



the peaceful lake. Its surface was thickly studded with the 

 bodies of pike, carp, perch, bream, roach, and dace, multitudes 

 of which were carried into the ocean, and thrown afterwards 

 upon the beach, most of them having been bitten in two by the 

 dog-fish, which abound in the bay. It is a singular fact that a 

 pike of about 20 lb. weight was taken up dead near the Mut- 

 ford end of the lake, and, on opening the stomach, a herring 

 was found in it entire. — Edinburgh Quarterly Journal of Ag- 

 riculture^ No. xviii. 



GEOLOGY. 



8. Elevations in Australia, New South Wales. — The fol- 

 lowing elevations above the level of the ocean, of points on the 

 road over the Blue Mountains to Bathurst, and interior to the 

 westward of its meridian, were computed by John Oxley, Esq. 

 late Surveyor-General, from differences of the column of mer- 

 cury, taken simultaneously in Sidney, and at the respective 

 stations, in the year 1817, which barometrical admeasurements 

 have been, since that period, fully verified by others : — 



Spring Wood (Military Post) 124 miles from Emu Ford, 1297 



Bridge over Ravine,, 1? ditto ditto, 1814 



Caley's Repulse, 18 ditto ditto, 2110 



Christmas Swamp, 24 ditto ditto, 2466 



King's Table Land, 264 <litto ditto, .... 2798 



Military post, 28 ditto ditto, 2820 



32 miles, 3203 



324 niiles, 3382 



Blackheath, 41 ditto, 3411 



Summit of New Pass, 3245 



Base of ditto, 2714 



Summit of Mount York, or Old Pass, .... 3309 



Base of ditto, 2610 



Vale of Clwyd, near Collitt's Inn, 2642 



Depot at Cox's River, military post, (Lat. 33** 33' S., Long. 



150° 05' E.) 2172 



Mount Blaxland, 3074 



Hill above Jock's Bridge, 3444 



Fish River Bridge, 2669 



Hill above ditto, 3254 



Sidmouth Valley, 2606 



Bathurst Flagstaff, (Lat. 33° 24' S., Long. 149° 29' 30'' E.) 2232 

 Depot of 1817, on the Lachlan River (Lat. 33° 40' S., Long. 



148° 20' E.), 600 



Field's Plains, on ditto (Lat. 33° 15' S., Long. 147" 16' E.), 500 



