FORESTRY. 507 



Rocky Mountain region, portions of Siberia, the Caucasus, 

 Turkestan, and possibly Tliil)et, are illustrations. 



Fourth. To the plants from the regions already indicated, 

 may be added certain cosmopolitan species, which inhabit 

 widely different localities, and seem to flourish everywhere 

 in the old world. 



Of these the North Atlantic region, M^hich includes our 

 own local flora, possesses a variety of forest trees at least 

 twice as great as is to be found on the whole continent of 

 Europe, and trees, too, of acknowledged superiority, which 

 have long been sought for and planted in foreign countries. 

 These North Atlantic species have, for ornamental planting, 

 the great advantage of producing those beautiful tints, the 

 wonder and charm of ojir autumnal woods, while the trees 

 of European introduction are brown, and dull. 



These trees require no introduction here. They include 

 the Red, White and Rock Maples, the Bass wood. Locust, 

 Cherry, Tupelo, Cucumber Tree, the Ashes, Birches, the 

 hardy Catalpa, the Elms, Hickories, "VYalnuts, a dozen Oaks, 

 the Chestnut, and, among the conifers, the Red, White and 

 Pitch Pines, Hemlocks, Firs and Cedars. 



Among the trees most frequently planted here are many 

 European species closely resembling their American rela- 

 tives, but which, however, are not of lasting value. The 

 climate of western Europe, as was previously mentioned, 

 dilTers much from ours, on account of the great influence of 

 the Gulf Stream, which mitigates the winter's cold and moist- 

 ens the summer's heat, producing a climate more nearly 

 resembling that of northern California and Oregon than our 

 own. In fact, the trees of Oregon flourish well in the cli- 

 mate of England, where many of them have been intro- 

 duced ; whereas, with us, excepting a very few species, they 

 would not survive a single season. 



Among the European trees of frequent occurrence in cul- 

 tivation here, are the Norway Spruce, Linden, Sycamore, 

 Maple, English Oak, Scotch and Austrian Pines, European 

 Ash, each of which has its respective superior in the Ameri- 

 can White or Blue Spruces, American liinden, Rock Maple, 



