180 MISSOURI BOTANICAL GARDEN BULLETIN 
tropical countries. The seeds, strung upon a stick, are 
burned as candles in the Sandwich Islands. When pressed 
the seeds yield a large amount of pure oil similar to linseed 
oil, except that it dries more saaokiy and presents a harder 
and more waterproof surface, and is less light-proof and 
elastic. The oil derived from Aleurites Fordii is imported 
into the United States for use in varnishes, paints, soaps, 
linoleums, etc. 
Calophyllum inophyllum. Guttiferae. Domba-oil tree.— 
A large tree, native of the East Indies and Polynesia, also 
known as Alexandrian laurel. From the fresh seeds a 
fragrant green oil is obtained, which in India is known as 
pinnay or domba oil. It is used for burning in lamps, and 
also as a medicine, being externally applied in the treatment 
of rheumatism. 
Calophyllum Calaba (calaba oil), tropical America. 
Olea europaea, Oleaceae. Olive tree—An evergreen tree, 
native of Syria, Palestine, and Greece, naturalized abund- 
antly on the shores of the Mediterranean, and cultivated ex- 
tensively in California and southern Australia. The tree 
reaches 40 feet in height and attains great age. It is exceed- 
ingly productive, even thriving on poor, ae sandy soils, 
and has been prized from antiquity on account of the oil ob- 
tained by pressure from the pulp of the fruit. Cotton-seed 
oil, which is sometimes used as an adulterant in olive oil, re- 
duces silver nitrate, whereas olive oil does not, and this prop- 
erty makes possible the detection of adulteration as small as 
1 per cent. Large quantities of olives are preserved or 
pickled, being prepared by soaking the unripe fruits in 
eee and lime to remove the bitter constituents, and then 
ttling in brine. Ripe olives are bluish black in color, and 
are also important as an article of commerce. 
Olea cuspidata, southern Asia. 
Salvadora persica. Salvadoraceae. Mustard tree.—A 
small, glaucous tree of India, Ceylon, and Arabia. Persians 
make tooth-brushes from the twigs, hence the tree is some- 
times called the tooth-brush tree. The bark has an odor like 
that of cress, and is supposed to be the mustard of Luke 
XIII: 19. The root bark is very acrid and acts as a vesicant. 
The leaves are eaten as salad and also serve as fodder for 
cattle, and the seeds yield an oil, “kikuel-oil.” 
Terminalia Catappa. Combretaceae. Indian almond.—A 
large, deciduous tree, native of India, but naturalized in the 
West Indies and America. The wood is largely used for the 
construction of houses, carts, ships, etc. The Leas of the 
