CATALOGUE. METEOROtOGY, WINDS. 



455 



Musschenbroek's chart of the trade winds. 



Introd. at the end. 

 *Semeyns Haarl. Verh. III. 183. 

 La Nux on the trade winds. A. P. 1 760. H. 



17. 

 Franklin. Ph. tr. 1765. 182. 



Derives the N. W. wind from the current of air descend- 

 ing from the upper regions : in America theN. W. wind is 

 a land breeze. 



Forrest on the monsoons. 4. Calc. 1732. B. B. 

 8. Lond. 1784. 



Bad theory. 



Atkins. Ph. tr. 1784. 58. 



The N. W. wind prevails at Minehead. 



Legentil. A. P. 1784. 480. 



The wind is inclined to W. at Paris. 



On trade winds. Leipz. Mag. fur Oekon. 



1786. i. 

 ♦Prevost on the trade winds. Roz.XXXVlII. 



365, 370. 

 Kirwan on the variations of the atmosphere. 



Extr. Pli. M. XV. 311. 



Incline to Halley's theory in preference to Hadley's. 



On the monsoons at Bombay. Ph. M. XiV. 



328. 

 Mafich. M. IV.601. 



At Liverpool the S. E. wind prevails, probably from local 

 circumstances. In other places, S. W. or N. E. winds are 

 most usual. 



Particulars of the trade winds, from Roherlson. 

 \. For 30° on each side of the equator, there is almost con- 

 stantly an easterly wind in the Atlantic and Pacific oceans : 

 it is called the trade wind : near the equator it is due east, 

 further off it blows towards the equator, and is N. E. or 

 S. E. 



2. Beyond 30° latitude, the wind is more uncertain. 



3. The monsoons are, perhaps erroneously, deduced 

 from a superior current in a contrary direction. 



4. In the Atlantic, between 10° and 28° N. latitude 

 about 300 miles from the coast of Africa, there is a con- 

 stant N. E. wind. 



6. On the American side of the Caribbee islands the N. E. 

 wind becomes neatly E. 



6. The trade winds extend 3° or 4° further N. and S. on 

 the W. than on the E. side of the Atlantic. 



7. Within 4° of the equator^ the wind is always S. E. : it 



3 



is more E. towards America, and more S. towards Africa, 

 On the coast of Brasil, when the sun is far northwards, 

 the S. E. becomes more S. and the N. E. more E. and the 

 reverse when the sun is far southwards. 



8. On the coast of Guinea, for 1 500 miles, from Sierra 

 Leone to St. Thomas, the wind is always S. or S. W. pro- 

 bably from an inclination of the trade wind towards the 

 land. 



g. Between lat. 4" and 10°, and between the longitudes of 

 Cape Verd and the Cape Verd islands, there is a track of sea 

 very liable to storms of thunder and lightning. It is called 

 the rains. Probably there are opposite winds that meet 

 here. 



10. In thelndian ocean, between 10° and ao°S. latitude, 

 the wind is regularly S. E. From June to November, these 

 winds reach to within 2'^ of the equator ; but from Decem- 

 ber to May the wind is N. W. between lat. 3° and 10° near 

 Madagascar, and from 2° to 12° near Sumatra. 



11. Between Sumatra and Africa, from 3^ S. latitude to 

 the coasts on theN. the monsoons blow N.E. from Septem- 

 ber to April, and S. W. from March to October : the wind 

 is steadier, and the weather fairer in the former half year. 



12. Between Madagascar and Africa, and thence north- 

 wards to the equator, from April to October there is a S.S. W. 

 wind, which further N. becomes W. S. W, 



13. East of Sumatra, and as far as Japan, the monsoons 

 are N. and S. but not quite so certain as in the Arabian gulf. 



14. From New Guinea to Sumatra and Java, the mon- 

 soons are more N. W. and S. E. being on the South of the 

 equator ; they begin a month or six weeks later than in the 

 Chinese seas. 



15. The changes of these winds are attended by calms and 

 storms. 



10. At Liverpool the wind is said to be westerly two thirds 

 of the year. In the south of Italy the S. E. scirocco is the 

 most frequent. 



17. Winds passing over land become dry and dense: over 

 the sea, warm and light. 



18. In some countries the dry winds produce dreadfully 

 scorching effects, as the solanos in Arabia. Others, as in 

 China, are inconvenient from their extreme moisture. 



Measures of Wind. 



Wren's weather clock. Birch. I. 341. Fi". 

 Croun's anemometer. Bird'. \\. 257- 

 Giegory on wind. Ph. tr. 1 J75. X. 307. 



The wind broke down «n obelise la feet high, 3 feet 

 tbi«k. 



