14 Nature threatened 
Frangula, Tilia paruifolia, Fraxinus 
excelsior, Cornus sanguinea, Sambucus 
nigra, Viburnum Opulus, and Lonicera 
Periclymenum, The herbaceous plants, 
too, and the ferns and mosses are 
more or less destroyed ; and at the 
same time the birds, which live and 
breed in the woods, are disappearing. 
In place of the old natural wood- 
land, a mere plantation arises which 
consists only of cultivated and perhaps 
foreign species of forest trees. In this 
way, the elements of the forest, the 
vegetable and animal world, and in- 
deed the whole aspect of the country- 
side are greatly altered in character. 
In many countries, for example, in 
Holland, Denmark, and Saxony, the 
primitive woods have largely disap- 
peared. Whilst travelling in Great 
Britain, I have occasionally seen places 
where trees are to be found in their 
natural growth, but I am not sure that 
