220 FORESTRY OF NORWAY. 
a little filled up in the following year on account of 
damage caused partly by mice and partly by frost, have 
since then succeeded well, and they show at present on 
the whole a good, and in some parts even a very good, 
growth. In the spring of 1870 some maple and a little 
ash were planted in groups on more exposed places within 
the same woodland (about 4 maal). A part of this plan- 
tation has, however, been damaged by frost and by mice, 
which have gnawed the bark off the trees; and it does not 
look so well as the plantation made in 1868; within the 
last two years, however, it has shown a better growth, and 
it seems to be thriving. In 1871 attempts were made to 
rear forests by sowing. The upper or easter forest at Aas, 
on the hill between Frydenhaug and the workmen’s lodg- 
ing house, a piece of about 34 maal, was sowed with fir 
seed mixed with larch seed. This succeeded well on the 
whole; and with the exception of a few spots, where the 
thick grass had prevented the growth of the small plants, 
this sowing has at present a good appearance. In the 
lower or western forest, between the high road and the 
neighbouring farm, Kvestad, about 1 maal was also sown 
with fir seed mixed with larch seed; this, however, did not 
succeed so well, on account of there being here another 
kind of soil. The sowing of larch seed was a failure, and 
therefore we find here more bare spots, which will have to 
be atterwards filled up. Next to this sowing, about 2 maal 
were experimentally sown in the same spring with oak 
and ash, the experiment was, however, a failure, the plan- 
tation, situated on a low level, close to the high road, 
having since suffered so much from frost that it has had 
for the greatest part to be cleared and replanted with pine 
and some Betula oderata; the replanting, which was com-. 
menced in 18738, and continued in 1875, looks well. All 
of these experimental plantations in 1868-1871 (all to- 
gether about 8} maal) were executed exclusively by the 
pupils of the school, although forest cultivation at that 
time was not not among the ordinary subjects of teaching 
which were prescribed. 
