282 



Oh |>|p. 142 153 ilic animal and plant remains found in the various layers 

 of the interglacial bog are noted, and in the Table pp. 153 155 ;i list is given 

 of all Ihe animals and piants Found in the bog; i \W refer to the uppermosl 

 layers, the Sphagnum peat, l\ i<> the Meesea peat, X the gytje and XI the 

 freshwater sand. 



General remarks on the bog in village at Brørup station. 

 (Almindelige Bemærkninger nm Mosen i Brørup Stationsby.) 



The section described through this small, deep bog, which to judge 

 From the depression in the ground above il has scarcelj been more than 

 ;i hundred meters in circumference, shows thai il has passed through the 

 same developmenl from lake to drj beath-bog as our common, North 

 Sealand, postglacial wood-bogs. The bog began ns a small open lake — or 

 rather water-hollow . in lo which the sand was lirsl carried; then an 

 extensive layer ol' gytje \\ ;is deposited on the bottom ns the organic life in the 

 water and ;il ils horders became richer, :ni<l finally the water-hollow became 

 entirelj overgrown, firs! with Floating bog formed by Meesea longiseta, which 

 is ;i well-marked, moisl »floating bog-moss«, later witb Sphagna. The upper 

 peat layers in the section show ns Ihe bog as a dry heath-bog, overgrown 

 with Calluna, Empetrum, Enodium, Picea etc; il is quite evident and is seen 

 ironi ihe description above, that these species have grown on the surface 

 ol Ihe bog and have not been washed or hlown out over t h is. That the 

 developmenl has proceeded in l his manner, From lake to heath-bog, also 

 appeals trom the laet, that the Ireshwater sand (XI), the gytje (X) and the 

 Meesea layer (IX) contain water piants, water animals and swamp piants. 

 which do not occur again higher up in the Sphagnum peat. 



The last pari in the dcvelopmenlal histor} ol' the bog ohtained ils character 

 IVom the advancing (Baltic) inland ice and the glacier-rivers streaming in front 

 ol this. which carried away a part ol' the nppcrmost layers of the bog; othcr- 

 wise these would certainly have remnants ol' the purely arctic vegetation, which 

 must be considered to lune grown on the bog before this became covered 

 by the ice-sheel and its deposits. The »transition laver«, the brown, hunions 

 sand. helween the peat and whal lies above. the white or whitish-yellow, 

 glacial sand, must be considered to have been formed by the glacier-water 

 Ironi the advancing ice by the fusion ol' sand, clay and peat. 



That the ice mnst be considered to have advanced over the bog and the 

 whole group ol ridges will be explained more fully in a later section; so 

 much is in anv case cerlain, thai the bog is covered by a fiuvio-glacial sand 

 ol' ca. 6 m. in tbickness, and that this — as we know Ironi numerous gravel- 

 pits. borings and excavations in this neighbourhood — rests upon exten- 

 sive glacial deposits. 



The species which in lloristie regards characterize the bog are the spruc'e 

 and Carpinus betulus; neither of these two forest trees have hitherto been 

 known Ironi Danish postglacial beds, and just as little l'rom the postglacial 

 beds of Norlh-W'est Germany 1 ) or England; on the other hånd, both are 

 characteristic ol' the interglacial beds of the same regions. 



1 Apart from the quite isolated discovery of a single pollen grain of Picea in 

 Litorina gytje at Kiel C. Weber, 1!)(I4. p. 5), a discovery which, as Weber also 

 remarks, does not prove that the spruce has lived in this region in postglacial time. 



