(217 ) 
the collecting season, protected by a specially organized 
police force numbering several thousand men. The col- 
lectors must sell the crude camphor to the Japanese govern- 
ment, which refines it for the market. The government 
sells the refined camphor through a single agent, who is 
required to regulate the price in all parts of the world, to 
prevent speculative enterprises in it. Crude camphor is a 
loose, spongy, crystalline mass, saturated with camphor 
oil. This oil is also an important commercial article. 
Woods. Cases 119 and 200.—The east wing is occupied 
by woods. The exhibits fall under two main divisoins, 
the one consisting of a series of wood-specimens from all 
parts of the world, and crude wood-products such as pipes, 
canes, shoes, sandals, utensils, and carbons or charcoals; 
the other being a synoptic collection illustrating North 
American dendrology. The wood specimens consist either 
of blocks of wood, or of sections of trunks with the upper 
part cut so as to show the long grain of the wood and also 
the cross grain. In the case of wood-products the crude 
material and the finished product is shown when possible. 
The collection of North American dendrology is based on 
specimens of the wood of all North American trees. To 
these wood-specimens are added specimens of the twigs, 
of flowers, of fruits, and of other objects of interest from 
the various trees. 
2. THE MUSEUM OF SYSTEMATIC BOTANY 
This occupies the entire second floor of the building and 
is designed to illustrate by specimens, drawings, and 
photographs, types of all the natural families of plants, 
beginning with those of the simplest structure and ending 
with the most complex. It consists of four series of 
objects: 
(a) The general synoptic collection. 
(b) A series of microscopes showing selected specimens. 
(c) Illustrations of the local flora. 
(d) Plant photograph exhibit. 
