402 
REPOETS OF THE PROCEEDINGS OF' GEOLOGICAL 
SOCIETIES. 
OSWESTRY NATURALISTS' FIELD CLUB. 
O.v Thursday last, the 29th July, the members and friends of the above society 
made their third excursiou for this season. The "field" to be explored was a 
very interesting one, embracing the coal-measures and nflllstone-grit of Sweeney 
and Treflach, and the mountain-limestone of Treflach and Trefonen, terminating 
with the Moclydd. 
The members present were : — Mr. J. Meredith, Oswestry ; Rev. D. P. Lewis, 
Buttington ; Rev. F. W. Parker, Welshpool ; Rev. J. E. Hill, Welshpool ; Rev. 
D. Lloyd, Trefonen; Mr. S. W*. Williams, Welshpool ; Mr. D. C. Davies, Mr. E. 
AV. Thomas, Mr. S. S. Lees, and Mr. J. Croxon, O.swestry ; Mr. J. Clarke, Brook- 
house ; and Mr I. F. Whitridge, Morda. The following gentlemen also attended 
.as visitors. — Mr. J. S. Davies and Mr. Turner, Oswestry ; Mr. Huglies, King's 
College, London ; and Mr. Stokes, Trefonen. 
The party proceeded by Sweeney Colliery and Gronwen to the locality between 
Treflach Hall and Sweeney Mountain, whei-e some of the membei-s were interested 
in observing the line of faults witli which the millstone-grit is broken, those 
faults being there distinctly traceable along the surface. Others commenced a 
search for the rare fern, HynunophyUum, said to grow in a wood thereabouts, but 
were unsuccessful. From thence tliey wended their way to the quarries in the 
mountain-limestone at Treflach, where the collectors of fossils soon filled their 
bags and boxes with the various genera of corals, shells, &c., peculiar to that for- 
mation. Among others, we noticed a very perfect tooth of Megaliclithys. From 
Treflach the excursionists proceeded in two parties to the Moelydd. The one 
ascended the hill by the direct route, the other from its base at Nant Mawr, in 
order to make out the nature and position of the rocks of which the hill is formed. 
Here again they were rewai'ded by finding numerous specimens of fossil corals 
and bivalve shells iu the blue shale underlying the mountain-limestone. The gem 
of all the fcssils found during the day, however, was a very perfect specimen of a 
trilobite found in the blue shale just mentioned, by the Rev. D. P. Lewis, of But- 
tington. From this shale the members ascended to the igneous rock which flanks 
the western side of the hill, and having obtained numerous crystals of sulphate 
of iron, with which that rock is plentifully dotted, they started for the top of the 
bill, where, in a happy oblivion of tables and chairs, they proceeded to discuss, 
with a right good will, the bountiful repast laid out on the green sward for them 
by Mrs. Hughes, of Yr Efel Inn. 
The Rev. F. W. P.irker said he was sure it was the feeling of ,all present, that 
the meeting ought not to separate without expressing their respect to Mi-. Meredith 
for the deep intere.st he had taken in the welfare of the Society, and the kindness 
with which he had assisted the members on the several excursions. He hoped 
that success and prosperity might attend him in his far-distant home. 
Mr. Mekedith replied that, when far away, nothing would give him greater 
pleasure than to know that this Society was doing its best to work out what he 
hail begun — the geology of the district — and he hoped that he should hear from 
some of the members ; and if ever he returned to England, his first desire would 
be to visit tlie Oswestry Naturalists' Field Club. 
Mr. D. C. Davies proposed that Mr. Meredith should allow his name to be 
placed on the list of honorary members of the Society, as no one was more worthy 
of that honour than he was. 
REVIEWS. 
Report of the Tiventy-seventh Meeting of the British Association for the Advancement 
of Science; held at Dublin, in Ajiyusl and September, 18-57. London: John 
Murray, Albermarh-slreet, 18.58. 
The Report of the British Association Meeting for 1857 has just appeared, and is as 
usual, a most valuable and interesting volume ; although most of the important 
