— 13 — APPENDIX A; PETTERSSON 



west coast stations. The monthly means are calculated from the observations of the 

 Norwegian Meteorologie Institute in Christiania and the Danish Meteorological Institute 

 in Copenhagen'. Comparing the dotted line, which represents the actual variations 



1874 75 76 77 78 79 80 81 82 83 84 85 M 87 68 89 90 91 92 93 94 95 96 97 98 



00 Ol 02 03 04 



1374 73 7S 77 70 79 



62 63 84 85 86 67 



92 93 94 95 96 97 96 



0« 01 02 03 04 



Fig. 8. Temperature of tlie sea at the Norwegian coast and Temperature of the air 



in the central part of Sweden 



Temperature of the Water Temperature of the air 



during 1902 — 1903 of the Norwegian stations to this, we find a large deficit in the intensity 

 of the heatwave 1902 owing to the retardation of the maximum. Only Januaiy brings 



' Prof. Mohn has kindly placed the observations made in 1903 and 1904 at m\- disposal. 



