IV AKVKirnsEMENT. 



made by Mr. Jainos (ireoii. of New Yt)rk. and known as the Smithsonian 

 Thermometers, were emphtyed. 



The direction and force of the winds, and the degree of cloudiness were 

 determined witliout tlie aid of special instruments. 



From the nature of the case these observations cannot lay claim to any 

 minute accura(;y. yet it wns tliought desirable and not without utility, to make a 

 record of the facts as tlu-y would appear in the judgment of a practiced observer. 



The force of the wind is expressed in numbers from 1 to 6, the latter indi- 

 cating a great storm or gale. 



The reductions, revisions of proof, and arrangement for publication, have 

 been performed under the special supervision of Mr. Charles A. Schott, by Mr. 

 E. II. Courtenay. of the United States Coast and Geodetic Survey. 



SPENCER F. BAIRD, 



Secretary Sniiilis'mian Institution. 

 \\ AsuiNoTo.x, Miircli. ISSii. 



