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The ftcond remarkable phaenomenon is that the North Pacific 

 Ocean, above latitude 40*^, is much colder than the North At- 

 lantic, betwixt the fame parallels. The interior parts of Siberia, 

 eaft of lons^itude 100, are much colder than the parts equally 

 diftant from that meridian on the weftern fide. The coaft and 

 interior of the weftern regions of America are much colder above 

 latitude 40*^ than the correfponding trads of the European con- 

 tinent. 



A THIRD fingular circumftance is, that barometers, in the 

 northern parts of Europe at leaft, generally ftand higheft in the 

 months of December, January and February. This has been ob- 

 ferved almoft conftantly at Peterfburgh during ten years, (IX 

 Coment. Petrop. p. 32-5) that is from 1726 to 1736, and during 

 eleven years at Abo, that is from 1750 to 1761. 25 Schwed. 

 Abhand. p. ir2; and by Mufchenbn in Holland, in the year 

 1728. La Cotte alfo obferves, that the higher and loweft ftates 

 of the barometer occur in the winter months. 44 Roz. Jour. p. 

 232. It is alfo well known that the fmalleft variations occur 

 within the tropics, but gradually increafe as we recede from 

 them. Ibid. 



Now the fad ftated by Halley, and with which all the above 

 phtenomena appear to me to be conneded, is, that the equatorial 



air. 



