Oil Diiirnal Variation of Barometric Pressure. 



Diurnal Compaaent and Continentality fContinuelJ. 



Fig. 5. 



Latitude : 40°-50' 



0-ß 



0-2 



1. Tiflis. 



2. St. Paul. 



3. Madrid. 



4. New York. 



5. Toronto. 



6. Duluth. 



7. Cleveland. 



8. Chicago. 



9. Salt Lake City. 



10. Sapporo. 



11. Portland. 



12. Milano. 



13. Bucharest. 



14. Xukuss. 



15. Alpena. 



16. Halifax. 



17. Boston. 



18. Gl neve. 



19. Kremsmünster. 



20. Bismarck. 



21. "Winnipeg. 



22. Wien. 



23. Hobarton. 

 21. Albany. 



25. Esquimault. 



26. Paris. 



27. Coimbra. 



28. Lésina. 



29. Triest. 



30. St. Martin de 

 Hinx. 



31. München. 



32. Pola. 



33. Napoli. 



Fig. 6. 



Latitude : SO^-öO" 



1. Irkutsk. 



2. Prag-. 



3. Leipzig. 



4. Magdeburg. 



5. Greenwich. 



6. South Georgia I. 



7. Upsala. 



8. Bruxelles. 



9. Petrograd. 



10. Moscou. 



11. Dorpat. 



square. Moreover it was clearly shown that the influence of the 

 land distribution was remarkably less for the latitude 40° than for 

 20.° The result was communicated in a meeting of "Meteorologi- 

 sches Colloquium" in the Meteorological Institute of Berlin. The 

 publication was however refrained, since the Buchan's chart was 

 far from ]:>eing up to date and moreover the amplitudes refers to 

 the total amount of variation, but not to the diurnal component. 

 Recently the subject wa^ resumed for a more detailed investigation, 



