Meteorology. 



157 



Tuesday, July 12. 

 12 o'clock, noon 



1 afternoon 



2 - - 



86" 



89 



3 - - 8Si 



4 - - 87 



5 - - 84i 



6 - - 83-i- 



7 - - SU 



8 - - 7.H 



9 - - 72 

 10 - - 70 

 The sun-shine this day 



was sometimes interrupt- 

 ed by thin clouds ; some 

 wind was stirring. Baro- 

 meter, 29-7. 



In London the heat in the shade was about one degree 

 higher than the above. 



Cheltenham, July I9. 



Sir, As the subject of meteorology comes within the plan 

 of your periodical publication, perhaps the following state- 

 ment abstracted from a register I have kept of the weather 

 at Cheltenham for two years past, may be worth inserting 

 in the next Number of your Philosophical Magazine. 



As the weather has lately been hotter than we have ex- 

 perienced in Britain for some years past, and I understand 

 the mercury rose in the thermometer above 90 in London, 

 I beg leave to state the greatest heat and cold at Cheltenham 

 by Fahrenheit's thermometers, placed in a northern aspect, 

 and in the shade in the open air, where they were unexposed 

 to the infiuence of hot walls. It appears the heat was for 

 two days 17 degrees higher than in the same week of the 

 preceding year at Chdlenham. 



Greatest heat. P. M. 

 1808. 



nth of July 78° 



12th 86 



13th S6 



14th 82 



15th 81 



In the evening and night of the latter date mucU vivid 



and silent lightning was succeeded by heavy rain to the 



amount of 1-30 inch. And at the distance of a few miles 



V from 



Greatest oold of the Night. 



38^ 



71 



71 



72 

 76 



