REFERENCE TO THE PRINCIPAL TABLES AND 

 LISTS. 



Relating to Elevation. 



Page 

 Altitudes of hills, houses, &c. - - 5 



Heights of Canals - - - 18 



Relating to Temperature. 



Difference between the mean annual temperature of the air at 

 any given hour, and that for the whole twenty-four, as 

 ascertained at Leith - - -23 



Mean annual temperature of the air, by register thermometers, 



and at stated hours - - 24 



Average temperature of the air according to latitude - - 26 



Supposed temperature of the air according to altitude - - 27 



Mean annual temperature of the earth - - 28 



Temperature of the earth, according to altitude - - 30 

 Temperature of the air in the months and seasons, by register 



thermometers - - - 31 



The same, observed at stated hours - - - 32 



Relating to Rain. 



Average annual fall of rain, in the eastern and western counties 34 



Rain on the line of the Rochdale Canal - - 34 



Average fall of rain in the different months - - 36 



Relating to the Number of British Plants. 



Number of species in Britain, England, Scotland, and Berwick 40 



Number of species in the different Local Floras - - 41 



Numerical estimate of the Natural Orders - - 42 



Proportion of each Order to the whole Flora - - 44 



a 



