-Meteorological Journal for July.. 159 



Numerical Results for the Month. 

 Inches. 

 „ ( Maximum 30-37, July 26th— Wind N.E. 



mrometei j Minimum 29 . 60j Ditto 2 1st— Wind N. 



Rangcof the mercury . . 0*77. Inches- 

 Mean barometrical pressure for the month 29"932 



■ for the lunar period ending the 15th inst. . 30*230 



for 16 days, with the Moon in North declin. 30*125 



for 13 days, with the Moon in South declin. 30-335 



Spaces described by the rising and falling of the mercury 3*670 



Greatest variation in 24 hours 0*400 



Number of changes . 23* 



rp, k Maximum 81°, July 8th— Wind S. 



inermometer ^ Minimum 5l Do 16tn _Wind NW. 



Range 30 



Mean temp, of the external air 66*84 

 for 31 days with the 1 c^.q* 



Sun in Cancer j 



Greatest variation in 24 hours 27*00 



Mean temp, of spring water 1 _ ^ 



at 8 o'clock A.M. . . . j 5Z '* 7 



De Luc's IVfialebone Hygrometer. 

 Degrees. 

 Greatest humidity of the air . 61 in the evening of the 23d. 

 Greatest dryness of ditto ... 46 in the aftern. of the 19th 



Range of the index 15 [& 25th, 



Mean at 2 o'clock P.M. ... 52*5 

 ■ at 8 o'clock A.M. . . . 55*3 



at 8 o'clock P.M. . . . 56*4 



of three observations each V #p _ 



day at 8, 2, and 8 o'clock J ' 



Evaporation for the month 4*35 inch. 



Rain in the pluviameter near the ground . 1*605 



Rain in ditto 23 feet high . 1*495 



Prevailing wind, S.W. 



Summary of Hie Weather. 

 A clear sky, 7 ; fine, with various modifications of clouds, 

 16; an overcast sky without rain, 5\ ; rain, 1\. — Total 3 1 daj's. 



Clouds* 



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



20 15 28 24 20 14 



Scale of the prevailing. Winds. 

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

 4 1\ \ 6 2 U 3 2 31 



A ?.IETEORO- 



