rV. CLIMATE. 145 



■Western. Eastern. 



1806 North Severn. — ? Noilb Ouse. 



2862 South-cast Wales. 804 West Ouse. 



2463 South-west Wales. — ? East Trent. 



3571 North Wales. 2150 West Trent. 



1803 Mersey. 1485 East Humber. 



3166 I^ake lands. 2580 West Humber. 



2635 South-west Lowlands. 2658 Tyne. 



2552 Norlh-west Lowlands. 2741 East Lowlands. 



4374 Inner West Highlands. 3945 South-east Highlands. 



3000 Ebudes. "3168." 4300 Mid-east Highlands. 



3720 Lower North Highlands. 4100 North-east Highlands. 



3230 Upper North Highlands. 1590 Orkney. 



2700 Hebrides. 1470 Shetland. 



Some authorities make the West Lowlands and North 

 Highlands considerably higher than is indicated by the 

 figures above ; namely, 3000 and 4000 feet. A copious 

 compilation of altitudes for the several counties may be 

 seen in the small volume published in 1836, under title 

 of * Remarks on the Geographical Distribution of British 

 Plants.' 



9. General climate. — The geographical position of 

 England induces peculiarities of climate, which doubt- 

 less affect its flora, and thus induce in turn corre- 

 sponding peculiarities of its vegetation. In the broad or 

 general view the fact seems obvious enough. Yet is it 

 difficult, even to present impossibility, to trace out very 

 special connexions between plants and climate. In its 

 relations to plants, climate involves most varied combi- 

 nations of temperature and humidity, of exposure to sun 

 and wind, shade and shelter, &c., &c. If time and place 

 are both taken into account, by the season of the year, 

 the character of the locality, and other circumstances, 

 the combinations become endless in their variety and 

 proportions. Only some of the leading characteristics, 



VOL. IV. '^ 



