TRANSACTIONS OF THE SECTIONS. 91 
Tue VIGRA SECTION. 
The Vigra Copper Mine is situate to the west of Clogau, and takes up nearly the 
whole of the Vigra Mountain. Extensive explorations have been carried on here 
for copper, some of which is auriferous. The lode-stuff, taken at random, yields 
nearly half an ounce of gold to the ton, on assay. Specimens have produced more 
than this. Visible gold is said to haye been found here. This mine ought to be 
worked on a large scale for gold. The Clogau Gold Mill is erected on this property. 
Tyddyndu Mine, or as it is called ‘“ Victoria,” lies between the Vigra and Clogau 
Mines, to the south of Maesclawdd, and extends under the turnpike-road at Pont- 
ddu to the river Mawddach. There are several lodes on this property, all of which 
are auriferous. At present they are poor at surface. 
North Vigra Mine has several lodes, said to be gold-bearing. 
The Wellington Mines have some yery large quartzose lodes in them, which are 
undoubtedly auriferous. 
Fach-ynys Mine.—The lodes here have yielded 6 dwts. of gold to the ton at the 
surface. This mine promises to be rich. 
Nant-Coch Mine has given by assay, and, singularly enough, by Britten’s 
Machine, 9 dwts. 15 grs. of gold to the ton of mineral, 
Llanaber Mine, near Barmouth, is also auriferous at surface. 
The known gold localities are now multiplied; and the author added, that he 
should not be at all surprised if every quartzose vein of the district is found to be 
auriferous, but that it must by no means be inferred from this that every quartz- 
lode will pay for working: some will not; but where there are so many, some cer- 
tainly will prove rich. 
Having said thus much upon the increased number of places in which gold is 
found in this district, the author made some reference to the modes of gold-extrac- 
tion now in operation. 
Notice of some Mammalian Remains from the Bed of the German Ocean. 
By C. B. Ros, F.G.S., Se. 
It has for a very long period been known that, during the degradation of the 
cliffs of the counties of Norfolk, Suffolk, and Essex, teeth and bones of various 
mammals have been exhumed, and, more largely, those of Pachyderms. In Queen 
Elizabeth’s time, huge bones were found at Walton, near Harwich. They were 
then considered to be those of giants. In the ‘Philosophical Transactions’ for 
1745, a Mr. Baker records the finding of a fossil elephant at Mundesley Cliff; and, 
in 1746, Mr. Wm. Arderson, of Norwich, makes mention of similar remains dis- 
covered at Hasborough and Walket, on the Norfolk coast. 
In the course of years, vast numbers of teeth and bones have been collected. 
The late Mr. Woodward, of Norwich, says, in his ‘Geology of Norfolk,’ “ Mamma- 
lian remains have been dredged up on the Knole Sand off Hasborough. This spot 
presented us, in 1826, with the finest tusk of the Mammoth; it measured 93 feet 
along its curvature, and weighed 97 lbs.” But off Dungeness a tusk was dredged 
up which measured 11 feet in length, and yielded some pieces of ivory fit for manu- 
facture. ‘The oyster-bed off Hasborough was discovered in 1820, and, from the 
number of grinders of the Elephant found there, Mr. Woodward felt himself war- 
ranted in concluding that upwards of 500 animals were deposited in that limited 
space. 
PiThe coloured map of the German Ocean exhibited at the Meeting showed the 
localities whence the organic remains are chiefly taken. Certain spots marked 
thereon are the fishing-grounds, and, therefore, the depositories of the fossils with 
which we are made familiar; but we cannot doubt that these exuviz are more 
enerally distributed over the sea-bottom. The following specimens were exhi- 
ited :—Teeth of three species of Elephant, Elephas primigenius, E. antiquus, and 
E. meridionalis ; cervical and dorsal vertebrae of the same genus; two teeth of a 
Hippopotamus (a dorsal vertebra has since been brought up); a dorsal vertebra of 
a Whale; a unique specimen of a lower jaw of the Trichechus rosmarus; heads of 
the Megaceros Hibernicus, male and female; an anterior dorsal vertebra of ditto 
(an antler, 4 feet 6 inches long, has since been brought me); atlas of ditto; a frag~ 
