[ 126 ] 



The fituation is however favourable, being againft a weftern 

 wall facing the fea, and well fheltered by diftant trees from ftrong 

 winds. And in the neighbourhood of the fea I have little 

 doubt but it would grow ftill farther north. 



The fea air has generally been reckoned a powerful obftacle 

 to having plantations on its fliores. But many obfervations have 

 convinced me that it is the wind alone which prevents the 

 growth of trees on the fliores of the fea. And that on a 

 large plain, where the winds are unimpeded in their courfe, the 

 fame difficulty of raifing plantations as on the margin of the, 

 ocean' will be experienced. 



In Forfter's Account of Cook's fecond Voyage, it is mentioned, 

 that the trees on New Zealand were growing fo clofe to the 

 edge of the water, that the fhip's mafts were entangled among 

 their branches; and in particular fituations the fame proximity 

 of trees to the fea might be obferved in various latitudes. At 

 Fairhead, the moft northerly extremity of Ireland, and expofed 

 to the fury of the Northern Ocean, the Sorbus aucuparia 

 (Mountain Afh), Betula alba (Birch), Quercus Robur (Oak), 

 with other indigenous trees, grow luxuriantly within 15 or 20 



yards 



vation leflen heat 1°, and on dividing 5,162 feet by 299, we have 17°, which 

 fubtrai£led from 69 mean annual temperature of latitude 32°, give 52, for the Scrra 

 of Madeira, correfponding with the latitude 5 1° (1 ). 



I See Kirwan's Table of mean annual temperatures. 



