Miscellanies. 389 
2. Discovery of Saurian Bones in the Magnesian Conglomerate 
near Bristol.—Although some of the earliest noticed Saurian remains 
were the fossil Monitors of Thuringia, discovered in the Continental 
equivalents of our magnesian limestone,—characterized by the same 
testacea and fishes which occur in corresponding formations in the 
North of England,—it does not appear that Saurian remains have 
been until now detected in this geological site in our own series. 
Recently, however a quarry of the magnesian conglomerate, resting 
on the highly inclined strata of carboniferous limestone, at Durham 
Down, near Bristol, has afforded some Saurian vertebre, ribs, femora, 
and phalanges, together with claws, the latter of considerable pro- 
portional size: a coracoid bone has also been found, approaching 
very nearly to that of the Megalosaurus. The general character of 
the bones seems intermediate between those of this genus and the 
crocodile. Dr. Riley, who submitted the specimens hitherto discov- 
ered to the Literary and Philosophical Society of the Bristol Institu- 
tion, is understood to be preparing a detailed account of this interes- 
ting discovery for the Geological Society. ‘The only Saurian remain 
hitherto found in this island in a site approaching to this, was a frag- 
ment of a lower jaw apparently of a gavial discovered in the lower | 
beds of the new red sandstone at Guy’s Cliff, Warwickshire. This 
fact is noticed in Parkinson’s small work on Organic remains.— 
London and Edin. Phil. Journ. 
3. On the Origin of the Erratic Blocks of the North of Germa- 
ny.—The following conclusions are given as the result of Kléden’s 
investigations on this subject ; they form the concluding paragraph in 
his interesting work, entitled,“ The Petrifactions of Brandenburg, 
especially those which occur in the rolled Stones and Blocks of the 
South Baltic Plain.” 1. A part of the erratic blocks of the plain of 
North Germany, and indeed, by much the larger portion, have a 
great analogy to the rocks of the north of Europe, and those rolled 
masses which contain petrifactions, also agree in their organic remains 
with northern rocks ; and indeed, there are even rocks and petrifac- 
tions among them which are peculiar to the Scandinavian peninsula. 
On the other hand, many of the rocks and petrifactions which are 
characteristic of the north, have not been found among the rolled 
masses, and those petrifactions which are extremely abundant in Nor-- 
way and Sweden, are replaced by others in the erratic blocks. 2. An- 
other part of the rocks containing petrifactions, which occur as blocks, 
