320 Report on the Agriculture of Denmark, loith a Note on 
original map is a manuscript, which was presented to the Geo- 
logical Society by its author, the late Dr. Forchhammer, many 
years ago. I have reduced the scale, and generalised the 
geological features, so as to render it more intelligible to agri- 
culturists who are not thoroughly conversant with the refine- 
ments of geological classification ; but in all essential respects 
I believe it to be a faithful reproduction of the original manu- 
script drawn up by the distinguished Danish geologist. 
The subsoil of Central Sealand, of Fyen and the other Danish 
islands (with the exception of Moen and Lesso), and that of the 
eastern side of the Cimbrian peninsula, consists of a marly clay, 
of glacial origin, containing large boulders, and known as 
*' Boulder-clay." It is very similar to the deposits of that 
c haracter which I noticed last year in my " Report on the 
Agriculture of Sweden and Norway." The surface of this deposit 
is undulated, and in the Duchies of Schleswig and Holstein, as 
well as in the south of Jutland and the islands, the country is 
well wooded, the favourite tree being the beech, of which very 
fine specimens are to be found in many of the parks belonging to 
large landowners. The western coast of the peninsula, from the 
mouth of the Elbe to beyond Ribe, near the present frontier of 
Denmark, is fringed by a nearly continuous band of marsh-land, 
much of which is below the level of the sea, and is pi'otected 
from inundations by dykes, as in Holland. Between these two 
fertile regions lies the central barren tract of sandy and peaty 
land, which stretches, with a gradually increasing breadth, from 
the extreme south of Holstein, through Schleswig, to the centre 
of Jutland, near Horsens, from which place it rapidly narrows 
towards the north, and is finally lost sight of in the neighbour- 
hood of Thisted. North and east of the boundary of this sandy 
tract the character of the country changes, and cretaceous 
deposits, striking north-west and south-east, with fringes of 
boulder-gravel, replace those that have just been mentioned, both 
in North Sealand and the northern part of Jutland. These 
cretaceous deposits present the same features in Denmark as 
elsewhere, namely, rounded hills of slight elevation, often dapped 
by a bed of gravel or other detrital material. Nowhere do 
the hills reach any consitlerable elevation, the highest in the 
country, appropriately termed the Himmelbjerg, or Heaven's 
]Mount, not exceeding 500 feet in height. 
Each of the great geological formations of Denmark is cha- 
racterised by a distinctive system of agriculture, although possibly 
the lines of division are, in fact, not quite so sharp as might 
be inferred by reading this brief description and classification. 
Still, it may be said generally that the region of the boulder-clay 
and boulder-gravel is the great dairy district both in Denmark 
