METEOROLOGY. 3G7 



tions of temperature with height;' 2. Solar radiation; 3. Evaporation; 

 4. Galvanic earth currents; 5. Parallax of the aurora ; 6. Spectroscopic 

 observations on the aurora; 7. Ocean currents ; 8. Tidal observations; 

 9. Structure of ice; 10. Density of sea- water; 11. Atmospheric electric- 

 ity; 12. Atmospheric refractions ; 13. Twilight; 14. The force of gravity; 

 15. Collection of samples of air for analysis; 16. Collection of samples 

 of atmospheric dust for analysis; 17. Observations and collections in 

 zoology and botany, geology, &c. 



It is hoped that all these observations will be eventually published 

 in extenso on a uniform system. 



Thirteen nations have thus far entered heartily into the project; fif- 

 teen polar stations and over forty auxiliary stations have been estab- 

 lished. 



Go-operation of the respective nations in the International Magnetic and 

 Meteorological Observations. 



UNITED STATES. 



Polar stations. Lat. Lonj^. 



1. Lady Franklin Bay, Orinnell Laud N. 81° 20' W. 64° 58' 



2. Point Barrow, Alaska N. 71° 18' W. 150^ 24' 



Auxiliary stations. 



3. Los Angeles K 34° 03' W. 118° 16' 



4. Fort Chi mo, Ungava Bay N. 51)0 00' W. 08° 00' 



5. Copper Island, Kamtchatka N. 55° 00' E. 168° 00' 



6. Preparation of Daily International Weather 



Bulletin and map for the entire globe. 



AUSTEIA-HUNGAEY. 



Polar stations. 



1. Jan Mayen N. 70° 58' W. 8© 35' 



Auxiliary stations. 



2. Special course of observations on telegraphic 



earth currents will be made by the tele- 

 graphic department at 12 or 14 stations. 



3. Pola K70O52' E. 13° 51' 



DENMARK. 



Polar stations. 



1. Godthaab K 64© 10' W. 51° 45' 



Auxiliary stations. 



2. A special north polar expedition started to 



explore north of Siberia, but the latest news 

 reports it frozen up near Nova Zembla. 



FINLAND. 



Polar stations. 



1. Soudan Kyla N. 67^ 24' E. 26° 36' 



Auxiliary stations. 



2. Helsingfors K 60° 12' E. 25^00' 



3. Wasa N. (.3° 00' E. 21o 05' 



