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up a similar map of the entire Northern Hemisphere as drawn that same day "by 

 the German raeterological office in Famhurg, Germany, We laid those two maps, 

 drawn the same day one in Tashington, and the other in Hamburg, side hy side. 

 They were almost exactly alike. The general areas of clear weather and the 

 centers of storms, the "Highs" and "Lows" with those attendant lines circling 

 about them had been accurately located by the different map makers working 

 thousands of miles apart. 



Of course, the Herman weather map men had European conditions shown in 

 a little more detail, because they get more observations in Europe than are 

 considered necessary to send in the trans-oceanic exchange of weather infor- 

 mation. On the other hand, our ITorthem Hemisphere weather map shows condi- 

 tions in the United States with a little more detail. 



In the main, however, the exchange of observations gives each of the 

 world's chief meterological services the information by which its experts can 

 chart a practically complete and accurate picture of weather conditions the 

 world around. 



Here is how the swapping is done: 



Twice a da;s at 11 A.M. and 11 P.M , o-or United States Weather Bureau 

 sends direct to Paris by radio a selected set of some 75 weather reports from 

 the chief weather stations scattered throu^out the United States, Canada, 

 Alaska, Greenland, and the West Indies, and from ships at sea in the North 

 Atlantic west of 35 degrees and in the Pacific Ocean. At Paris, those reports 

 from this side are rebroadcast from the Eiffel Tower, and picked up tr.' such 

 of the twenty-two raeterological services of Europe as do not copy the bulletins 

 direct. Many of them do. The reports are used in forecasting and weather 

 study by the different countries. 



A similar collection of reports on European conditions has been as- 

 sembled at Paris and forwarded from there to this covmtry by radio. Recently, 

 however, it was found that better reception could be obtained through the 

 British Meterological Office and the Rugby, England, radio station. 



So now, twice a day, at 9 P.M, and 10 A.M., Greenwich Mean Time, the 

 weather reports covering conditions over Europe, northern Africa, parts of 

 the Union of Socialist Soviet Republics, and Asia, and the North Atlantic 

 oceein east of longitude 35 degrees, as recorded at 36 weather stations of 

 different nationalities, are gathered by the British Meterological Office at 

 London and forwarded to this countr;/ througli the British radio station at 

 Rugby. 



Mr. Haidle sa^'s that reports from stations along the river Nile in 

 Egypt and on the Red Sea aJo now included among those used in making the daily 

 chart of the Northern Hemisphere at our United States Weather Bureau, 



Next year, throu^ the courtesy of the Portugese government we maj'' 

 get several reports from the Cape Verde Islands off the west coast of Africa. 

 That report will be forwarded by wa^^ of Lisbon to the Azores by radio, and 

 then cabled directly to Washington, and Mr, '"'aidlc estimates that it may prove 



