There are two in the Arboretum; one specially intended for planting the Kew grounds with ornamental trees and shrubs, and rearing a stock for exchange; the other (formed at the desire of the First Commissioner in 1855), to supply the metropolitan parks. Both are profitable; and the latter has proved to be a very useful part of this establishment. In 1856 it furnished 1010 trees (chiefly Planes and Elms); in part 1857, 4100 trees; and in 1858, 2475; the sizes varying from 6 to 14 feet; while the Pleasure Ground Arboretum sent to the parks of the metropolis, with the sanction of the Board, in 1857, 9289, and in 1858, 2814 trees and shrubs of great variety, besides furnishing the grounds at Kew with no fewer than 18,000 in the year just closed.

A magnificent Herbarium and Library are among the attractions: - Many authors have taken up their residence at Kew for weeks, and even months, in order to acquire that information which, it may be safely said, is nowhere else to be so conveniently or fully obtained. Add to to them the casual visitors who come (in always increasing numbers) from the metropolis and the provinces, etc, and who are engaged in botanical, medical and economical publications, and some idea may be formed of the importance of this branch of the Kew establishment; to say nothing of the inquiries continually made by letter, inquiries that always meet with prompt and encouraging attention. After these statements, avouched by the acknowledgments of the authors in their respective works, it cannot be denied that the Kew Herbarium and Library, especially taken in conjunction with the noble collections of living plants in the Garden, and the products of plants in the Museums, are admirably adapted for the study of botanical science.

And there is the great and inestimable privilege, not attainable in the capital of England, that the collections do not suffer from dust and coal-smoke, which are destructive both to paper and specimins.

The Economical Mutewn is one of the great features, and is now probably the most useful thing of its kind in the world. It has gradually grown to great size and importance, and here information respecting all vegetable growths useful to the world, are exhibited in all stages, from the rough bark to the finest textile fabric, and England by this school is enabled to adopt and apply to maufactures everything that can be valuable for the use of man. When shall we imitate this great and useful Garden.