do 



A COMPARISON BETWEEN THE 



MEAN TEMPERATURE AND MEAN DEW POINT 



or N. E. AND S. W. WINDS, AT LONDON AND MALVERN, FOR THE WINTEE 



AND SPRING. 



Winter. Wind. Mean Temp. Mean Dew-Point. 



at 9 a. m. at 9 a. m. 



^""^o- ;:::;::::I-A^;=;:z;:l^«;::;;::;::;-;::::;:::::;:;;li 

 M"!'- 1 :;:;::::::^-^:::=:;:;^;:::;;:;;;:::;;:;:;;:;;;:::!r 



Spring. Wind. Mean Temp. Mean Dew-Point. 



i'<'"^™{;::::::::^-^;::;::;::::::;:::::^L::;:::::::;::::::::::::::::^; 

 Ma.-n{::;.::;:::N.K,.............^^^^^^^ 



NUMBER OF DAYS ON WHICH RAIN OR SNOW FELL. 



1834 — 35. December. January. February. Total for the Winter. 



London 8 13 13 34 



Malvern 7 9 12 28 



1835. March. April. May. Total for the Spring. 



London 12 12 15 39 



Malvern 10 9 16 35 



In attempting, therefore, to offer any sufficient reason for the 

 greater salubrity of one place compared with another, — as Malvern 

 with London, or with any other locality, — ^we are constrained to 

 look to different circumstances than those usually embraced in me- 

 teorological inquiries : neither the thermometer, barometer, nor hy- 

 grometer, furnishing us with materials sufficient for the purpose. 



An investigation into the nature and consistence of the soil, — the 

 conditions of its surface, — the circumstances attendant upon the ex- 

 halations arising Mere/row,-— and above all, the phenomena resulting 

 from their precipitation, — conjoined with careful observations on the 

 daily temperature, pressure, motion, and vapour of the air, — will be 

 more likely to elucidate the object of such an inquiry than the 

 greatest attention bestowed on the latter mentioned points only. 



In a district, therefore, where it is purposed to institute meteoro- 

 logical observations, it will be necessary to state whether the gene- 

 ral nature of the soil is clayey or sandy, — and this not only of the 

 immediate spot where they may be carried on, but for some miles 



