338 
THE VEGETABLE WORLD. 
part Australian trees, or 
scrubby bushes of little 
value to man. The Betu- 
LACES are nativesof Europe, 
Northern Asia, and North 
America, where the bushes 
exist on the limits of eternal 
snow; they are of little 
value as timber. The sap 
of the common Birch, B. 
alba, is obtained in spring, 
in North America, by tap- 
ping the trees; and an 
agreeable sparkling wine 
is obtained from it by fer- 
mentation: sugar is also 
made from B. nigré, and the 
bark and the leaves and 
catkins are used by dyers 
and tanners. 
The ALTINGIACEZ 
tropical plants of India, 
North America, and the 
Levant, storax being yielded 
by several species of Liqui- 
dambar, and others abound- 
ing with benzoic acid. The 
SaLICAcE®, as we have seed, 
are chiefly valuable to the 
basket maker, by whom most 
of the numerous species are 
woven into baskets andother 
useful and ornamental pro- 
ducts. 
The MyricacE# are leafy 
shrubs, or small trees, hav- 
ing resinous glands and 
dots; natives of the tem- 
: 
