318 Meteorological Observations for February 1827. 



disappeared. The star a Cygiii {Deneb) was conspicuous in the Aurora ; 

 and two small meteors fell immediately after the last of the coruscations 

 had ascended. The thermometer rose about 3 degrees during the time of 

 the Aurora, also in the evening of the 18th of Januar}', when it appeared, 

 which indicates a diffusion of warmth through the atmosphere from this 

 electrical phcenomenon. 



In 12 hours after its disappearance a strong gale came on from the East, 

 and continued about 40 hours. — An article on the recent Northern Lights 

 from a higher north latitude thun this, would be acceptable by the way of 

 comparison. 



METEOROLOGICAL OBSERVATIONS FOR FEBRUARY 1827. 



Gosport. — Numerical Results Jbr the Month. 



Barom. Max. 30-44 Feb. 3. WindNE.— Min. 29-49 Feb. 28. WindSW. 



Range of the mercury 0-95. 



Mean barometrical pressure for the month 29-983 



for the lunar period ending the 2oth instant .... 29-996 



for 14 days with the Moon in North declination . . 30-100 



-^^— for 15 days with the Moon in South declination . . 29-892 



Spaces described by the rising and falling of the mercury . . . 5-070 

 Greatest variation in 24 hours 0-480. — Number of changes 16. 



Therm. Max. 56° Feb. 27. Wind SW.— Min. 14° Feb. 16. Wind E. 

 Range 42°. — Mean temp.of exter. air 36S-62. For 30 days with © in^;; 35-27 

 Max. var. in 24 hours 21°-00 — Mean temp, of spring water at 8 A.M. 49°-12 



De Luc s Whalebone Hygrometer. 



Greatest humidity of the air in the evening of the 28th .... 98° 



Greatest dryness of the air in the afternoon of the 18th ... 45 



Range of the index 53 



Mean at 2 P.M. 58°-6— Mean at 8 A.M. 66-3— Mean at 8 P.M. 66-1 



of three observations each day at 8, 2, and 8 o'clock . . 63-7 



Evaporation for the month 0-90 inch 



Rain near ground 0-820 inches.— Rain 23 feet high 0-765 inches. 

 Prevailing Wind N.E. 



Smnmary of the Weather. 

 A clear sky, A\; fine, with various modifications of clouds, \\\; an over- 

 cast sky without rain, 10; rain, 2. — Total 28 days. 



Clouds. 



Cirrus. Cirrocumulus. Cirrostratus. Stratus. Cumulus. Cumulostr. Nimbus. 



8 6 24 14 4 8 



Scale of the prevailing Winds. 



N. N.E. E. S.E. S. S.W. W. N.W. Days. 

 2J 13J 4 1 1 3J ^2 28 



General Observations. — The weather this month has been remarkably 

 dry, with a long continuance of a piercing North-east wind, and extremely 

 cold for the advanced state of the winter quarter. Persons of delicate 

 constitutions have felt this wind, which prevailed about half the month, 

 very searching. No rain fell here from the 1st to the 26th, only light 

 sprinklings of snow on the 3rd, 12th, 15th, and 17th, which were not mea- 

 surable when dissolved. From the 9th to the 21st the fields, gardens, 

 ponds and marshes were ice-bound, and the carriage roads as dusty as is 

 often seen in March. 



On 



