in the old established Upper Silurian rocks — but it is ia the dis- 

 puted ground of the passage beds that the most important work is 

 being done, and new creatures discovered in rocks which were 

 formerly looked upon as unfossiliferous and uninviting. Some of 

 the Members of our Club, especially our Ludlow and Kington 

 friends, have been foremost in developing the strange fonns of 

 Pterygotus, Eurypterus, Auchenaspis, Ceratiocaris, that we are now 

 familiar with ; nor must I forget the Starfish bed which has yielded 

 such uncommon fossUs as the Palaeocoma, &c., to their diligent 

 hammers. While they have been working out their transition beds 

 to such good purpose, Mr. David Page has exhumed even strange- 

 looking fonns from the Lanarkshire and Forfarshire beds, which 

 until their exact positions have been defined, he styles Siluro- 

 Devonian rocks. From the Tilestones of the former he has got 

 Pterinsea, Orthonota, Trincula, Avicula, Orthoceras, Eurypterus 

 clavipes and Eiiryptems spinipes, thus adding two new species to 

 the twelve already known ; while the Forfarsliire flagstones, which 

 appear to the base of the Old Red, have yielded the gigantic tube of 

 the worm (Scolithus) and two new crustaceans, which have been 

 named Kampecaris and Stylonurus, as well as a small fish with kite- 

 like head, armed with five spines, called Ictinocephalus granulatus. 

 In the same beds he has also found a Cyclopteris and Lepidodendron. 

 Perhaps these are the equivalents of the beds at Trimpley, where 

 Mr. Roberts also found vegetable remains. The Old Eed, since 

 the days when Hugh Miller wrote his admirable little volume, 

 "The Old Red Sandstone," has been so divided and subdivided that 

 it has had a narrow escape of dying away altogether; but fortunately 

 for it, the opinions which were for giving half of it to the Carbon- 

 iferous system and the other half to the Silurian, have changed, 

 and the Old Red is still Old Red. 



Again, it is in Scotland that the most important work has been 

 done. Sir R. Murchison has finally classed the rocks in the 

 north-east under three divisions : the lowermost being conglomerates 

 and sandstones, the equivalents of the Forfarshire beds and the 



