OF THE BALTIC. 



399 



North Sea. The results of investigations undertaken for 

 this purpose, are now beginning to be collected. 



In the course of 1820 and 1821, Mr Bruncrona, as- 

 sisted by the officers of the Pilotage Establishment, and 

 other qualified persons, undertook the examination of all 

 the authentic measures that had been established upon 

 the west coast of the Baltic, during the last half century. 

 The results of this examination are given in a short 

 memoir, inserted in the Swedish Transactions for 1823. 

 The following table indicates the degree to which the 

 level of the sea has fallen during the last forty years, on 

 the coast of Sweden, at various latitudes. It is proper 

 to remark, that, in some of the places observed, the mea- 

 sures were much older, and in some others much more 

 recent, than the period of forty years. In both these 

 cases, the change of level that must have been effected 

 during this period, has been estimated, by calculating 

 the mean annual depression furnished by the observa- 

 tions. 



Of the facts collected in the course of this investiga- 



