Arboretum Britannicum. 563 



with such prosperity; such as the soil, degree of moisture, sub- 

 soil or rock, exposure, climate, elevation, proximity to the sea, 

 &c. &c. 



The same of an average specimen of such tender kinds as are 

 planted against a wall. 



The most Northern Limit at which any of the species or varie- 

 ties will grow as standards. 



The most Northern Limit at which any of the species or varie- 

 ties will grow against a wall. 



The Largest-sized Specimen, as a standard ; with its dimen- 

 sions, and the number of years it has been planted. 



The probable Height which the species would attain, as a 

 standard, in ten years. 



The following genera are intended to be contained in the early 

 Numbers : — Pseonia, Magnolz'a, Liriodendron, Asimina, Xan- 

 thorhiza, Berberis, Mahon/ff, Fella, Cistus, iifrbiscus, Tilia, 

 Stuartm, Malachodendron, Gorddnm, Thea, Camellw, Hy- 

 pericum, ^fcer, Negtindo, .JE'sculus, Pav/tf, and Kolreuterm. 



In addition to the above particulars, we are anxious to re- 

 ceive the History, Description, and Present State of all the 

 Arboretums which have been commenced in Great Britain and 

 Ireland ; not merely of regular systematic arboretums in private 

 or public botanic gardens or nurseries, but of all collections, 

 however small, of foreign trees and shrubs. In short, we are 

 desirous of such information as will enable us to give a Chro- 

 nological and Geographical History of foreign trees and shrubs 

 in this country. There are few old places which do not contain 

 some fine specimens of one or two of these trees or shrubs ; and 

 what we want are, their measurement, and the year in which they 

 were planted. 



The progress made by foreign trees or shrubs which have 

 been planted ten years or upwards is, perhaps, still more 

 interesting than the date of the introduction, and the size, &c, 

 of old specimens, because it shows the dimensions which such 

 trees will attain in a short period ; and, therefore, we trust that 

 our practical readers will be liberal in their supply of inform- 

 ation in this particular, for our first two Numbers, by measuring 

 for us standard Magnolias, Liriodendrons, Asiminas, Berberises, 

 Mahonias, and trees of the other genera mentioned above, which 

 may have been planted within the last twenty years, in their part 

 of the country. 



The portraits of all our trees and shrubs will be to one and 

 the same scale, viz., a quarter of an inch to a foot ; and the 

 botanical specimens (of which we shall generally give two of 

 each tree, one in flower, or as it appears in spring, if it does 



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