258 Proceedings of the Royal Society 
deposit at Elie, is yet more abundant at Errol, along with the 
Pecten Groenlandicus^ and most of the peculiar Arctic shells of 
the deposit. Some interesting additions to the list of Arctic species 
were obtained at Errol. The skeleton of a seal was also found ; 
but the description of these fossils, as well as the observations 
made on the nature of the deposit and its stratigraphical relations, 
were reserved for a future occasion. The author merely wished to 
direct attention to the fact, that those glacial clay beds of the Forth 
are found also in the Tay. 
11. Notes on the Bonlder-Clay at Greenock and Port-Glas- 
gow. By the Kev. B. Boog Watson, B.A., F.K.S.E., 
Hon. Mem. Nat. Ver. Liineburg. 
In Greenock, excavations have lately been made for a new gaso- 
meter. The works are now completed, but the superintendent, a 
most intelligent man, took me to the place, and told me what they 
had found in the course of digging. 
The site of the excavation is close to the shore, and very little 
above the tide-mark. 
At the south-east corner of the works, i.e., most remote from the 
sea, the workmen reached the rock at a depth of 20 feet. It 
was a soft shale, and I could not ascertain that any striations 
were observed on it. Probably there were none preserved on such 
material. Its upper surface was hat. Towards the sea, or north 
and west, the rock sloped downwards very steeply, and this sea- 
ward face was covered by a great bed or bank of sand, that sloped up 
from the edge of the rock, and as it receded rose higher as a bank. 
The flat surface of the rock was covered by from 6 to 12 inches 
of a fine soft clay without stones, I could not learn whether this 
clay overlay or dipped under the sand-bank, or whether it simply 
disappeared altogether at the edge of the rock, where the sand- 
bank began. The last alternative seems the most probable. 
Above the clay lay from 18 to 20 feet of boulder-clay, a little 
thinner, of course, over the back of the sand-bank. The boulder- 
clay was dark in colour, sandy, and full of striated stones, some of 
which were of considerable size — in short, exactly similar to what 
we have at Leith and Newhavem 
