JULY 1 TO SEPTEMBER 30, 1914. 17 



18709 to 38731— Continued. 



bridge building, for telegraph poles, and for railway ties. It is also 

 the one that is used principally in the manufacture of eucalyptus 

 Oil in California. (McClatchie, p. 61-63.) 



38716. Eucalyptus goniocalyx F. Muell. Mountain spotted gum. 

 This tree commonly attains a good size, in some situations in 



Australia reaching a height of 300 feet, with a diameter of 6 to 10 

 feet. The leaves of the adult tree are long and quite slender, the two 

 sides being similarly colored. The flowers are nearly steniless, in small 

 clusters borne on flattened stalks. This species grows well in the 

 coast regions of California, but so far as known has not been tested 

 in the dry, hot valleys of the interior, or other similar situations. In 

 Australia it ascends to elevations of 4,000 feet, and is therefore a 

 promising species for the mountains of the Southwest. The tree fur- 

 nishes a hard, tough wood used by wheelwrights, by boat builders, 

 and for general building purposes. It is very durable in the ground 

 and is consequently useful for railroad ties, for posts, and for other 

 purposes in underground situations. It also makes an excellent fuel. 

 (McClatchie, p. 63, 64-) 



38717. Eucalyptus gomphocephala DC. Tooart tree. 

 The tree is rather stocky and is usually symmetrical. The bark 



of the trunk is dark gray, rough, and persistent. From the branches 

 the bark flakes off in strips, leaving the surface smooth and light 

 colored. The twigs are reddish yellow. The leaves are thick and 

 shining and somewhat leathery, the upper surface being darker than 

 the lower. The flowers are of large size. This tree thrives along the 

 coast and does fairly well in the dry, interior valleys. It has not 

 been grown extensively enough yet to determine what degrees of heat 

 and cold it will endure in America. The tree furnishes a heavy wood 

 that is very tough and strong. It is one of the strongest timbers in the 

 world. The grain is so close and curled or twisted that it is not 

 easily split. The timber is used principally in shipbuilding and for 

 bridges. It is very durable in all kinds of weather and in a great 

 variety of situations. (McClatchie, p. 63.) 



38718. Eucalyptus leucoxylon F. Muell. White ironbark. 

 Trees of this species attain fair size in a comparatively short 



time and when full grown are large. They are apt to grow out of 

 the perpendicular, and the trunks are frequently crooked. The wood 

 is white and straight grained. The foliage has a pleasing bluish cast 

 and is well distributed over the tree. The leaves of the young seed- 

 lings are broad, opposite, stemless, or short stemmed. This tree will 

 grow in a greater variety of climates than most euealypts ; in fact, 

 there are few situations in the Southwest in which it will not thrive. 

 It grows vigorously on the coast, on the interior plains and foothills, 

 and in the dry, hot desert valleys of the interior. On account of its 

 adaptability to so great a variety of climatic conditions, it can be 

 used as a forest cover for almost all kinds of situations and thus 

 supply a timber useful for a large number of purposes. It can be 

 grown for fuel and for other purposes that the ordinary blue gum 

 serves where the latter will not grow. (McClatchie, p. 66.) 



71478°— 17 2 



