300 A COMPENDIUM OF 
in odor and taste, but may be distinguished 
from the latter by heating, by which means the 
gurjun balsam becomes a solid jelly, whilst the 
copaiba is rendered more fluid. Gurjun con- 
tains from 40 to 70 per cent of volatile oil, resin, 
and gurjunic acid. As a medicine, the gurjun 
balsam is used for the same diseases as the co- 
paiba, andinthe same doses. Itis said to make 
a good varnish for protecting wood against in- 
sects, 
Fraxinus Ornus, Ornus Europcea, the Flow- 
ering Ash, or Manna T'ree.—Natural order Ol- 
eaceze. Nativity somewhat in doubt; probably 
the countries lying along the Mediterranean Sea; 
found growing in Sicily. The tree attainsa height 
of 25 feet, more or less, adorned with impari- 
pinnate leaves, which are made up of 7 tog leaf- 
lets, these being oblong in shape, acutely 
pointed, and serrated. Flowers occur in dense, 
terminal panicles; corolla white, and somewhat 
drooping; fruit a capsule, long and narrow in 
shape. The manna of commerce is obtained by 
making incisions into the bark of the tree and 
inserting sticks, straws, etc., below the incision; 
the juice flows over these and concretes thereon. 
This manna is the flake manna of the stores. 
The mannas are concrete, saccharine exudations 
from the varieties of Ornus, and are found in 
uneven, porus, friable pieces, ranging from a 
cream to a dark-brownish yellow color. Odor 
rather faint, but the taste sweet and slightly bit- 
ter; containing mucilage, 90 per cent of imannit, 
Slucose, fraxin and resin, Manna is a very old 
remedy, and spoken of in the Bible. Its effects 
