13/19 The tree is now found in every civilised country, growing either as an ornament of the shrubbery, or for the manufacture of silk. This kind came originally from Persia, but is now, like the white mulberry, found in all civilised countries. It is cultivated more for ornament and shade than for feeding silkworms; though it is put to this use in some parts, especially in cold climates, where the other species does not thrive. They are easily distinguished from each other--the bark of the black being much rougher and darker. The wood of the latter is not so firm nor heavy as the white, but it is also durable, and is used in England for hoops, wheels, and ribs of small vessels. |