Arizona republican., 1891-02-27
THE EUcAIYpTI.
Useful Trees for shelter, windbrcaks
 and Eirewood.


 and rirewood.
 Of the Australian eucalypti or gum trees some fifty or more specits have been introduced and may now be seen growing on this coast. The different species range in size from small bushes or shrubs to the tallest trees in the world, stretching up into the air oyer 400 feet in their native land. Some of the species grow wonderfully faat, nota- bly, the most common ones---the blue gum teucalyptus globulous and the red gum teucalyptus rostrata) while some other species are of very slow growth. Some of tho species are beautiful when in flower, others graceful and pretty in form and foliage.
 The two most useful seem tp be tho ubiquitous blue gum and the red gum. They both grow rapidly, but the former has been reported as reaching aG alti- tude of 100 feet the tenth yeAr from seed.
 The blue gum is a rugged, upright, slender-growing tree, with little grace or beauty. Except in peculiar ljcations amongst other trees, the landscape gar dener would find little use for it.. Massed in groves or long avenues, its effect is often beautiful. Its effect is fiias when inassed on the tops of hills and when planted in rugged canyons to hide their nakedness; yet, as arule, the gums should be fanked on all sides with lower-grow- ing, spreading trees. Great blocks of gums on bilitops, with their pe7pendic- ular sides 80 to 100 feet, are striiing ob- jects in landscape.
 The peculiarity of the gums of most of the species, and the two abov,rnaued in particular, is that they will grow thriftily ill any country where the winter is not too cold. Cold seerns to be about their only enemy. The blue gum Is about as sensitive to cold as the orange. The red gum and few others of the order are shade hardier. The high, dry, rocky peak, in the full sweep of the summer winds, will give these hardy trees support, and they will grow finely there if given sufficient foothold while young, and from that down to the lowest and richest, moist valley, They may also be planted in low, miasmatic swamps to evaporate the suIerabun- dance of moisture and to render the air healthy and wholesome by their some what unpleasant calculations of lnlsamic odors. Their leaves and bark have medicinal qualities and are largely used as remedies for nalarial affections.
 For windbreaks theses gums are good but rather costly, for the reason that nothing but spring crops, grass and hay can be grown near them, and these only on moist ground. A row of gum trees sixty feet high will starve out all other crops and trees within seyenty-ave feet of them. The same is true of n,aarly all fast growing trees. As shade, lfGwn and ornamental trees the larger growing gums are seAdomif ever adnissable, not withstanding we see thousands of thean planted nearly everywhere they will thrive. They are most valuable trees on all parts of the coast where there is a scarcity of firewood. They make vast amount of wood that is fairly rood for domestic purposes. It is easily prepared when green. When cut they usually grow again from the stump. Immense quantities of such wood could be most profitably grown by planting these gums in waste places, such as lands t,o rocky and steep to blow, in ravines, around rocks, and on level lands too poor for anything else.