292 
A very ferruginous rock, composed of mi- 
nute grains of sand, thickly coated with 
hydrated oxide of iron ..................... 50 feet. 
A seam of oysters, which may be traced 
completely around the mountain ......... 
Compact limestone, forming the summit of 
Che mMOUntaii. a DOULEEes.- nee secleciseeccieo ae OO 
In a break in the side of Gebeel Suneen, and extending for some 
distance along the upper part of the lower conglomerate, is a basaltic 
dyke, which shoots upwards into the compact limestone. It is about 
100 yards wide, and begins, as well as terminates, very abruptly. 
Except a small hillock near the sea of Tiberias, this is stated to be 
the only trap seen by Mr. Heugh or his friends throughout the 
whole of Syria. 
The fossils from the middle bed of limestone are generally casts, 
but are assigned by the author to the genera Dolium, Buccinum, 
Nerinea, Turritella, Venus, Crassatella?, Hippurites, Trigonia, 
Cardium, Lucina, Nucula, and Spatangus. 
In a soft limestone at the village of Ba-abda, and also on the banks 
of the Zamies, are found large drusy geodes of quartz, and some- 
times of chalcedony. 
Among the other fossils contained in the collection, are specimens 
of Clupea brevissima (Agassiz, Tab. LXI., f. 6-9.). They occur 
in great numbers a little above Tripoli, on the way to the Cedars, 
and about thirty miles north of Beyroot. 
None of the fossils, except the fishes, having been identified with 
described species, Mr. Williamson does not venture to determine 
the precise age of the beds from which they were obtained; but he 
is of opinion that the fossils are more nearly allied to the organic 
remains of the cretaceous series than to any other. The Dolium, 
he says, bears a strong resemblance to the D. nodosum of the Eng- 
lish chalk, and a species of Venus to the V. angulata of the green 
sand. Nerina, he states, on the authority of Mr. Daniel Sharpe, 
are found near Lisbon associated with Hippurites. 
