SWEDISH OBSERVATIONS. 



31 



the third, fitth, sixth, seventh, eleventh, twellth, and fourteenth stations, 

 where they are approxinaate. 



German stations for forest meteorology. 



The field station is generally on cultivated soil, in a few cases on 

 meadows or marshy land. 



A monthly and an animal report are published from these stations 

 and the results have been made the subject of several special studies — 

 notably the temperature observations have been discussed quite re- 

 cently (1890) by Dr. Miittrich. 



The observations are taken on the same plan as those in Bavaria, but 

 observations of the tree temperatures and the measures of ground water 

 are omitted. 



SWEDEN. 



In 1876 the Swedish observations were begun under the direction of 

 the meteorological central office, and chiefly at the expense of the State. 

 The stations are here selected in a dilfereut manner from those in the 

 other services. There are few that are under trees; there are many 

 more in small glades or openings in the forest, and the comparative 

 lield stations are usually quite distant and in a freely open country. 

 This offers some advantages, for it permits the discussion of glade 

 climate or the climate in the vicinity of forests, as distinguished from 

 that under trees or that in open regions away from trees. A disad- 

 vantage is found in the fact that the results are not strictly coni]>aral)lo 

 with the results of observations taken elsewhere. Tlie observations 

 have, for several years, been under the direction of Dr. H. E. Hamberg, 

 who has published a discussion of the results in temperature and 

 humidity, the first in 1885, the second in 1889. The i)ublicatious made 

 up to this time relate to temperature and humidity only. 



