238 Meteorological Observations for January 1831. 



LUNAR OCCULTATIONS. 



Occupations of Planets and Jixed Stars by the Moon, in March 1831. 

 Computed for Greenwich, by THOMAS HENDERSON, Esq. ; and 

 circulated by the Astronomical Society. 



METEOROLOGICAL OBSERVATIONS FOR JANUARY 1831. 

 Gosport: Numerical Results for the Month. 



Barom.Max.30-60.Jan.7. Wind N.E.Min. 29-08. Jan. 21. WindS.E. 

 Range of the mercury 1-52. 



Mean barometrical pressure for the month 29-823 



Spaces described by the rising and falling of the mercury 6-500 



Greatest variation in 24 hours 0-800. Number of changes 18. 

 Therm. Max. 53. Jan. 23. Wind E. Min. 25. Jan. 25. Wind N. 

 Range 28. Mean temp.of exter. air 38'69. For 30 days with inV? 37'57 

 Max. var. in 24 hours 18 0> 00. Mean temp, of spring-water at 8 A.M. 49-42 



De Luc's Whalebone Hygrometer. 



Greatest humidity of the atmosphere, in the morning of the 1 7th ... 99 

 Greatest dryness of the atmosphere, in the afternoon of the 31st ... 62 



Range of the index 37 



Mean at 2 P.M. 78-0. Mean at 8 A.M. 83-3. Mean at 8 P.M. 82-0 



of three observations each day at 8, 2, and 8 o'clock 81'1 



Evaporation for the month 0-85 inch. 



Rain in the pluviameter near the ground 2-30 inches. 



Prevailing wind, E. 



Summary of the Weather. 



A clear sky, 3 ; fine, with various modifications of clouds, 8 ; an overcast 

 sky without rain, 13; foggy, i; rain, sleet and snow, 6. Total 31 days. 



Clouds. 



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

 11 7 27 9 7 31 



Scale 



