Daily synoptical weather-maps are published by the Weather Service of almost every civilised country. Those for the United Kingdom may be obtained from the Meteorological Office of the Air Ministry. The only weather-maps of large areas produced regularly are the Pilot Charts of the North Atlantic and the North Pacific, published monthly by the Hydrographic Office at Washington, and those of the North Atlantic and Mediterranean published monthly by the Meteorological Office in London. These show the tracks of cyclones, and give a great deal of information as to the meteorology and currents of the oceans. They are intended primarily for the use of sailors. The following list gives the name of the official weather service of all countries outside Europe and the town in which the head office is situated. Application might be made to any of these offices for information as to the stations where standard instruments are established in the country in question. EXTRA-EUROPEAN WEATHER SERVICES. ===================+====================================+================ Country. | Name. | Place. ===================+====================================+================ _America_:— | | | | Canada | Meteorological Service of the | | Dominion of Canada | Toronto. United States and | | West Indies | Weather Bureau | Washington. Mexico | Observatorio meteorologico | | magnetico central | Mexico. Salvador | Observatorio Astronomico y | San Salvador. | Meteorologico | Guatemala | Instituto fisico-geografico | San José. Cuba | Real Colegio de Belen de la | | compania de Jesus | Havana. Brazil | Central Meteorological Department | | of the Navy | Rio de Janeiro. Uruguay | Observatorio meteorologico del | | colegio pio de Villa Colon | Montevideo. Argentina | Oficina meteorologica Argentina | Buenos Aires. Chile | Oficina meteorologica | Santiago. Peru | Harvard College Observatory | Arequipa. | | _Africa_:— | | | | Algeria | Service météorologique | Algiers. British Central | | Africa | | Zomba. Egypt | Observatory | Helwan.