234 Reports and Proceedings : 
of N. S. Wales, and the occurrence of Vertebraria and Glossopteris 
throughout the entire series. Pachydomus and Bellerophon (abun- 
dant) and Spirifer (rare) are fouid towards the lowest seams ; and 
here, as well as lower down, Spirifer, enestella, and Orthoceras 
abound. A Heterocercal Fish has also been ‘ound in the shale above 
the‘ Yard Seam.’ Siliceous grits underneath the lowest seam con- 
tain Lepidodendron (Pachyphleus) ; 5th, the author alluded to the 
volcanic phenomena of the Peale Ranges, which have been upheaved 
since the Coal-period ; indeed, in some os the lavas Mr. Keene found 
a fresh-water mrssel of a probably existing species; 6th, re- 
ferring to the auriferous quartz-rocks, shales, and fossiliferous lime- 
stones, on which the Coal-measures lie unconformably, the author 
stated that he believed these older rocks were mutually connected, 
and belonged to one and the same system of strata; and that, besides 
gold, the quartz was rich with copper- a idiron-ores. An illustrative 
series of specimens accompanied the paper; and the author referred 
to a still finer collection deposited in the Bath Museum in 1862. 
In a letter addressed to Sir Roperick Murcurtson, Mr. J. Mac- 
KENZIE indicated that a coal-seam thirty-eight feet thick, and of 
good quality, had lately been discovered in New South Wales, thirty 
miles distant from any known coal, and that it belonged to the true 
Carbonifcrous age. 
A Brier ExpLaNaTION OF A GEOLOGICAL Map or tHe Neteu- 
BOURHOOD OF BristoL anp Batu, by W. Sanpers, Esq., F.R.S., 
¥.G.S., was a very clear and concise description of his large map of 
the district, prepared by reducing 220 parish-maps to the scale of 
4 inches to the mile, or 20 chains to the inch, with the colouring in 
accordance with that used by the Government Geological Survey. 
The area represented is 36 miles long from N. to S., and 80 miles 
wide from E. to W., including the Tortworth, Clevedon, Wraxall, 
Mendip, and Cotswold Hills; and presents the general features of a 
disturbed coal-basin, with its boundaries well defined on all sides ex- 
cept the eastern. Some tracts of limestone project from its western 
border. Nearly the whole of its interior is occupied by strata of 
Mesozoic age. Exterior to its northern boundary, Silurian strata 
appear. On the east and south the country is covered by strata of 
the lower and middle divisions of the Mesozoic or Secondary system. 
On the extreme south-eastern corner a small tract of the Greensand 
formation is seen, ‘Thus, the map comprises a large portion of the 
geological series, ranging from the Lower Silurian up to the lower 
division of the Cretaceous system. The author then proceeded to 
point out the position of each geological formation, and their relations 
with the hill-ranges and valley-systems. ‘The Coal-measures, opened 
up by the Kingswood, Nailsea, and Radstock pits, were especially men- 
tioned, as being 5000 feet thick, and divisible into lower and upper 
series, separated by the Pennant Grit, and containing about 90 feet 
of coal-seams, of which the half is more or less workable. Only 
