2 FORESTRY OF NORWAY. 
aod in winter is much greater on the coast than in the 
interior of the country. 
: The-diurnal variation in the force of the wind is very 
little marked in winter; it is more pronounced in summer, 
and especially in the eastern portion of the country is this 
the case. The force of the wind attains its maximum 
about 2 P.M.; it sinks to its minimum during the night. 
. Thus there is on the coasts of Norway a perfect contrast 
between the direction of the winds in summer and in 
winter. -The chief occasion of this must be sought in the 
alternate distribution of the pressure of the air on the 
central portion of the Scandinavian peninsula. In winter 
the air experiences a condensation which causes an onward 
current of winds issuing from it; and in summer a rari- 
faction which attracts a current of air or of wind towards 
the locality. 
For all this information I am indebted to Dr Broch’s 
report. . 
