WINDS. 



375 



and eastern limit in 28° south latitude, and 10° east longitude. Its 

 southern boundary tends westward to the meridian of 15° west longi- 

 tude, where its western boundary begins ; turning north, extending to 

 where the 35th meridian west cuts the Equator, it thence continues 

 as far as 3° north latitude. Its northeast terminus lies between the 

 longitude of 15° and 36° west, in the latitude of 5° north and the 

 Equator. 



The Southeast Trade Winds of the Pacific are distant from the coast 

 of South America 300 to 350 miles. The extreme southern limit may 

 be given in 30° south latitude, in the longitude of 80° west. On its 

 eastern boundary it has the same curve as the western coast of South 

 America. It passes to the west of the Gallipagos to the latitude of 

 4° north. Its southern edge varies as much as 10° in latitude during 

 the opposite seasons of the year. The southern limit runs from the 

 parallel of 30° to 26°, and between the longitude of 90° and 180° 

 west. This boundary is oftentimes much contracted and disturbed. 

 It sometimes describes a curve as far as the parallel of 15° south, in 

 the longitude of 140° west; thence towards the Equator in 170° east; 

 there it is bounded by the Northwest Monsoons of the Pacific Ocean ; 

 and during the period of the Southeast Monsoon of New Holland, 

 this Trade Wind becomes apparently merged in it. At times it may 

 exceed these limits to the west, but does not so usually. The winds 

 near the western terminus are light, with frequent calms, and varia- 

 ble at all seasons. The northern and western boundary extends 

 across the Equator to 3° 30' north latitude, and on that parallel 

 easterly to the meridian of 95° west. Of all the Trade Winds, this 

 is the most uncertain ; it blows for several days together strong, when 

 it intermits, and is succeeded by calms or light westerly winds. 



The Northwest Monsoon, and the southwest wind of the Southern 

 Pacific, when the sun is in southern declination, prevent these winds 

 from extending to the south, and confine them to the limits above 

 described. 



The Southeast Trade Wind of the Indian Ocean is found to prevail 

 at the distance of 350 miles from the west coast of New Holland, 

 between 11° and 30° of south latitude. On the latter parallel, it con- 

 tinues to the west as far as 43° east longitude, or nearly to the meri- 

 dian of Madagascar. Its northern limit describes a curve from the 

 90th degree of east longitude to the middle of that island, touching 

 the 11th degree of south latitude ; the north and south sides approach 

 nearly to a point, forming the western terminus. 



