130 Reports and Proceedings. 
on the Greenlaw Moor and the Dogdon Moss, and the mechanical 
laws which formed them, giving it as his opinion that lakes formerly 
existed in these places, and that these lakes were afterwards drained. 
Mr. J. P. Favxner, §.8.C., read his ‘Notes of Two Journeys in 1864 
across the Cairngorm Hills..— Caledonian Mercury 'y, Friday, Jan. 27, 
1865. 
Guascow GEOLOGICAL SocreTy.—January 19th, Rev. H. W. 
Crosskey in the chair. Professor A. Winchell was elected a cor- 
responding member. Mr. J. Youne exhibited and described a fine 
series of teeth of Rhizodus Hibberti from the Black-band Ironstone 
of Possil, near Glasgow, which is in the upper portion of the Car- 
boniferous Limestone series, and 524 fathoms below the ‘ Upper 
Coal’ of Lanarkshire. Prepared sections illustrated the structure of 
these teeth. Some of them are 44 inches long by 14 in breadth, 
above the jaw-bone. They are also found separate, as if broken 
from the jaw. Nearly perfect remains of smaller fishes are found 
with them. 
Mr. J. Tuomson exhibited a slab of Carboniferous shale, from 
Stonehouse, containing several bones of the head, with upwards of 
100 teeth, of Diplodus gibbosus, regarded by Agassiz as one of the 
flat cartilaginous fishes, such as the Sting-ray. Plewracanthus 
levissimus is, according to Sir P. Egerton, the barbed fin-spine of 
this species. . 
An excellent model-section of the Black Prince Pit, at Shet- 
tleston, made by Mr. J. SroKEs, was exhibited and described by Mr. 
J. Young. ‘The section is made up of the finely pounded material 
of the various strata passed through in sinking the pit to the 
‘Virgin’ or ‘Sour-milk Coal,’ compressed in consecutive order into 
a-narrow box, about 7 feet in length, with a glass front, and dis- 
playing distinctly not only the order of superposition and respective 
thickness of each bed, but also the colours of the various beds. Mr. 
Young explained the several parts of the section, and pointed out, 
the position of the various coals which lie between the ‘ Upper Coal’ 
of the Lanarkshire basin and the ‘ Virgin Coal.’ In reference to the 
colours of the various sandstones, shales, and seams of coal which 
were represented in the section, producing an extremely variegated 
column, beautiful in its variously tinted stratification, Mr. Young 
remarked that few persons unacquainted with the subject would 
readily believe that such a variety of rocks and colouring were to 
be met with in sinking an ordinary coal-pit; while by those who 
had studied the subject, and were convinced that each of these many 
coal-seams represented an ancient land-surface, on which was accu- 
mulated, from the growth of vegetable matter, those deposits now 
forming our coal-beds, and that the sandstones represented long 
periods of submergence, while the material forming them was being 
slowly deposited in sea, estuary, or lake—no doubt could be felt as 
to the immense time required for, and the great antiquity of, their 
formation. 
Mr. Skipsey shortly explained the relation of the coal-beds repre- 
