XX WINDS OF THE GLOBE. 



of the country, and many of them at pomts very remote. Lieut. Maury was also 

 prosecuting his work on the seas, and had covered by his published charts, the 

 entire Atlantic and Indian Oceans, the South Pacific, and all the North Pacific 

 except a portion of comparatively small area, between the meridians of 150° E. 

 and 165° W. from Greenwich, the chart for which was referred to by him in his 

 latest report as 'not yet printed'; — implying that it was substantially complete 

 in manuscript, and, if so, it would seem very desirable to have it completed and 

 published. 



" In view of all these flicts, and also that my original work lacked scientific 

 arrangement, it Avas thought desirable to revise and enlarge it, and the Smith- 

 sonian Institution generously made appropriations to aid in the computations, as 

 well as put at my disposal all tlie material at its command. The plan proposed 

 for the new work was that followed in the present treatise, to divide the earth 

 into 36 zones, by parallels of latitude 5° asunder, and so extending from the 

 north to the south pole; in each of these zones commencing at the 180th meridian 

 from Greenwich, and proceeding easterly according as observations furnished 

 the data, around the earth to the same meridian again. Between the parallels of 

 latitude 60° N. and 60° S. where observations are more abundant, records have 

 been obtained from about 2000 places in North America and the West Indies, 27 

 in South America, 23 at islands in the Atlantic, over 700 in Europe, 206 in Asia 

 and the East Indies, 70 in Africa, 48 in Australia and islands of the Pacific and 

 Indian Oceans, including the extreme "soutlicrly ones of Kerguelen's Land and 

 Heard's Island — the most southerly points where man has remained for any con- 

 siderable length of time; and for over 1000 years at sea. If this area be divided 

 into geographical squares, by drawing meridians and parallels of latitude 5° 

 asunder, of the 1728 squares so formed, 1402 are represented in the contents of 

 this work. The 326 vacant squares from which no observations have been 

 obtained are as follows: — 



21 in North America, mostly in British America, 



40 in the interior of South America, 

 None in Europe, 



75 in Central Asia, 



66 in Africa, 



15 in the interior of Australia, 

 108 in the North Pacific Ocean, and 

 1 in the South Pacific Ocean. 



North and south of the parallels of 60°, it is more difficult to obtain observa- 

 tions, and the material is therefore less abundant. Between 60° and 65° N., 

 results are given for 57 stations, embracing a period of 316 years, mainly in 

 Northern Eussia. Further north, about 34 stations have been obtained ; so that 

 all these 36 zones are represented in the work except three, one about the north 

 pole and two about the south, which had never been visited by man. 



I had proceeded so far with the work in the southern hemisphere that, in 1859, 

 I read a paper at the meeting of the American Association at Springfield, Mass., 



