1868. | Geology. 521 
strata no fewer than ten genera of Brachiopods, Pteropods, and 
Phyllopods. 
In a paper “On the Fossil Fishes of Cornwall,” Mr. Peach 
reminded the Section that in 1841 he stated that he had found 
fish-remains in the Devonian slates near Fowey ; that in 1843 he 
produced much finer specimens, which were acknowledged by all to 
be true ichthyolites until, in 1855, Professor M‘Coy pronounced 
them merely sponges; that he had unwaveringly believed in their 
ichthyic character ; and that early in the present year (1868) they 
had been again, and by the highest authorities, stated to be unmis- 
takable fish. 
Mr. C. Moore, in his paper “On the Fossil Contents of Mineral 
Veins in the Carboniferous Limestone,” stated that out of 134 
samples from the mines of Cumberland and Yorkshire, 80 had 
yielded organic remains more or less abundantly, including Valvata 
and other fresh-water shells, often in great abundance. He had 
also found teeth and scales of fish. Foraminifera were very rare, 
whilst Entomostraca and Crinoidea were prevalent. 
Mr. J. Thomson read a paper on “Certain Reptilian Remains 
found in the Coal-measures of Lanarkshire.” The fossils were 
Batrachian, and found in a stratum between ironstone and coal. 
They were associated with remains of fish believed to be peculiar 
to the Coal-measures. 
Dr. Mann, in his communication “On the Coal-field of Natal,” 
stated that the Natal coal occurred in seams from 2 to 6 feet thick ; 
that, from experiments, it was found to give a pure gas, a higher 
percentage of coke than the best English coal, and when burnt in 
a furnace it had but little tendency to form clinkers; that under 
easy steam it was better than the Welsh coal; that it gave the 
steam more quickly, but that when steam was got up the Welsh 
coal gaye more work out of the same amount of coal. 
Mr. H. Clarke read a paper “On the Western Asia Minor 
Coal and Iron Basin,” in which he pointed out the European 
extension of the deposit by way of Constantinople. This coal has 
not been worked, although covering so large an area. 
A paper “On the Classification of the Secondary Strata” was 
read by Mr. H. G. Seeley, who remarked that from the denudation 
of clifis, deposits near the shore would be shingle or conglomerates, 
then sand and clay, and still further seaward limestone. Supposing 
a depression of the area to take place, the conglomerates would be 
overlaid with sand and clay, and, should the depression be continued, 
eventually with limestone. With an upheaval, the reverse of this 
would occur. 
The same author read a memoir “On the Relations between 
