240 Meteorological journal. [Sept. 1813. 



diverging shadows on a coloured twilight, with Cirrostratus and 

 haze to the S. 26. Fair, a.m. At noon began a steady rain, 

 with distant thunder. In the evening several distinct Nimbi; in 

 particular, a well formed one in the N. E. 2"]. a. m. Cumulo- 

 stratus : p. m. rain, with distant thunder. In the evening dis- 

 tinct Nimbi, and a rainbow: much colour in the twilight, with 

 broad shadosvs on it. 28. Much dew : Cumuhis, with Cirrus. 

 At sun-set a calm air, with large plumose Cirri, highly coloured. 



29. A clear day: the wind passed from S. to E. Twilight 

 brilliant, with dew : the new moon showed a well defined disc. 



30. Cumulus, with Cirrus passing to the inferior modifications. 

 In the evening there was the addition of haze, with a pink colour 

 in the twilight. It lightened frequently before ten at night very 

 far in the S. E. with the wind S. 



Eighth Month. — 1. Rain at five a. m. : succeeded by a close 

 canopy of Cumulostratus. At sun-set Cirrus, with Cirrocumulus : 

 twilight opake, somewhat orange-coloured. 2. Much the same 

 phenomena as yesterday. 3. Some drizzling showers, with wind, 

 a. m. Sun-set very dark, the sky being full of low broken Cu- 

 muli: night windy. 4. a. m. Windy, with Cumulus, which 

 p. m. inosculated with Cirrostratus above it. 5. Rain early: the 

 wind S. In the evening (after several showers) clouds in various 

 modifications, the wind W. with lightning to the S. 6. Much 

 wind at N. W , with Cumuhis : a shower, p. m. 8. Close Cumu- 

 lostratus most of the day. Rain, evening. 9. Wind brisk at 

 N.N.W. a. in. At noon the upper clouds were perceived not to 

 move with this wind : at evening it fell calm : there were now 

 in the sky rose-coloured Cirri, in stripes from S. E. to N.W. 

 with Cirrostratus and Cumulostratus in a lower region: twilight 

 orange, surmounted with rose-colour. II. A Stratus after sun- 

 set, with Cirrostratus remaining above. Small scintillant meteors 

 now appeared, falling almost directly down, and seeming to 

 originate very low in the atmosphere. 13. Cirrus and Cirrocu- 

 mulus abounded. There was a slight shower about noon. 14. 

 Overcast : a little rain after sun-set. 16. The maximum of tem- 

 perature, for 24 hours past, occurred at 9 a. m. 17. Overcast: 



windy. 



RESULTS. 

 Prevailing Winds, Westerly. 



Barometer: Greatest height 30*17 inches; 



Least 29-40 inches; 



Mean of the period 29*799 inches; 



Thermometer: Greatest height 82° 



Least 47° 



Mean of the period 63'8S° 



Evaporation, 3 '42 inches. Rain, 261 inch. 



Tottenham, Eighth Month, to, 1813. L. HOWARD. 



