'^SS PHILOSOPHICAL TRANSACTIONS. [aNNO iJOQ. 



When the vestigia of this Roman station were first discovered, (of which 

 see N° 282 of the Philos. Trans.) I was apt to take it for the Adellocum of 

 the ancients, from some remains of the name in the present Adle or Adel, as 

 it is written, both in the Monastic. Anghc. and some ancient charts in my pos- 

 session ; but having afterwards an opportunity of perusing the' Domesday-book, 

 in the Exchequer at London, I found, besides Adele and Echope before-men- 

 tioned, another place in the neighbourhood, called Burghederum or Burgdu- 

 num, which I am now apt to conclude was the ancient Roman name of this 

 station. That the itinerary is silent herein, is no argument against it: for the 

 names of all the towns in the province are not there recited, but only such as 

 lie on those roads that are particularly mentioned; but that it has at least the 

 appearance of a Roman name, may be argued, because Burgi was the common 

 name for such castles or forts as were convenient for war, and well stored 

 with provisions of corn, as appears by the authorities quoted by Camden and 

 Burton in their notes on the Roman Verterae, or Burgh, under Stanemoor ; 

 and the Burgundians received their name from their inhabiting such castles : 

 it seems probable, that the small squared stones, of which the very antique 

 church at Adel is built, were brought from the ruins of such a castle, and 

 thence gave rise to an old tradition, which continues to this day, viz. that 

 Adel church once stood upon Black-hill, the place where these Roman monu- 

 ments were found ; the elevated situation of which place sufficiently accounts 

 for the termination of the name, the Gaulish or British Dunum, which signi- 

 fies a hilly or mountainous place, being naturalized in the Roman provincial 

 language. Within a mile of it, there are two scattering houses, that do to 

 this day retain the name of Burden- (for Burgdun-) Head. 



Concerning the Icy Mountains of Switzerland. By IVm. Burnet^ Esq. F. R. S, 



N°320, p. 3 16. 



I went to the Grindlewald, a mountain two days journey from Bern, where 

 I saw, between two mountains, a river of ice as it were, which divides into 

 two branches, and in its way, from the top to the bottom of the mountains, 

 swells int? vast heaps, some larger than St. Paul's church; the original of which 

 seems to have been this: the tops of these mountains are covered all the year 

 with snow ; this snow melts in the summer, and falls to the bottom, where the 

 sun never reaches; there it is frozen, which happens more easily to melted 

 snow than common water. Thus every year it has increased, till it has reached 

 the very top. The reason why the water has always frozen, though the sun 

 shines on the middle of the mountain, and higher, some part of the day, is 

 that the melted water goes under the ice already formed, and there freezes, and 



