318 Meteorological Observations for August 1828. 



27 days, 7 hours, and a few minutes, which latter it would be diffi- 

 cult to determine with any degree of accuracy ; however, the minutes 

 cannot at the furthest exceed twenty, which we will allow. From 

 this time, 27 days, 7 hours, 20 minutes, it is proper to subtract 1 

 day, 21 hours, 40 minutes for the angular distance in time that the 

 earth made in the ecliptic during each revolution of the spot ; hence 

 the real time of each respective revolution, and also the real time of 

 the revolution of the sun on its axis, which is the cause of the ap- 

 parent motion of the solar spots, is 25 days, 9 hours, and 40 minutes. 

 Our daily observations on other solar spots in the interim, after they 

 had made one revolution, corroborate the accuracy of this time. 



If any malign influence on the weather exist from the appearance 

 of solar spots, it has been verified in the summers of 1816, 1823, 

 and 1828, by the great number which then appeared on the sun's 

 disk, and the wet and stormy state of the earth's atmosphere at 

 these periods. But to demonstrate this hypothesis of a great man, 

 which has recently been alluded to in the provincial newspapers, 

 would require great labour and anxiety at the telescope in the day; 

 yet we think the task is by no means insurmountable, where time 

 is no object to an accurate observer. 



METEOROLOGICAL OBSERVATIONS FOR AUGUST 1828. 

 Gosport. — Numerical Results for the Month, 

 Barom. Max. 30-29 Aug. 26. Wind S.E.— Min. 29-36 Aug. 6. Wind S.W. 

 Range of the index 0-93. 



Mean barometrical pressure for the month 29-860 



Spaces described by the rising and falling of the mercury 4-300 



Greatest variation in 24 hours 0-430. — Number of changes 22. 

 Therm. Max. 76° Aug. 24 & 25. Wind W.— Min. 47°Aug. 15. Wind N.E. 

 Range 29°.— Mean temp.of exter. air 63°-18. For 31 days with in ft 62*60 

 Max. var. in 24 hours 25°-00— Mean temp, of spring water at 8 A.M. 55°-20 



De Luc's Whalebone Hygrometer. 



Greatest humidity of the air in the evening of the 13th 94° 



Greatest dryness of the air in the afternoon of the 15th 45 



Range of the index 49 



Mean at 2 P.M. 59°-5 —Mean at 8 A.M. 6G°*4— Mean at 8 P.M. 71*5 



of three observations each day at 8, 2, and 8 o'clock 65-8 



Evaporation for the month 3-05 inches. 

 Rain near ground 2-585 inches. 

 Prevailing wind, S.W. 



Summary of the Weather. 

 A clear sky, 4£; fine, with various modifications of clouds, 12; an over- 

 cast sky without rain, 9; rain, 5£. — Total 31 days. 



Clouds. 



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



23 15 30 24 26 21 



Scale of the prevailing Winds. 

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

 1 4i 2* 3 1 12 3 4 31 



General 



