( 132) 
world, and crude wood-proeducts such as pipes, canes, shoes, 
sandals, utensils, and carbons or charcoals; the other being a 
synoptic collection illustrating North American dendrology. 
2. THE MUSEUM OF SYSTEMATIC BOTANY 
This occupies the entire second floor of the building, and 
is designed to illustrate by specimens, drawings and photo- 
graphs, types of all the natural families of plants, beginning 
with those of the simplest structure and ending with the most 
complex. It consists of three series of objects: 
(2) The general synoptic collection. 
(4) A series of microscopes showing selected specimens. 
(c) Iustrations of the local flora. 
a. Synoptic Collection. This is designed to illustrate the 
plant world. A series of characteristic objects is installed 
as a basis for illustrating each plant-family. These speci- 
mens are accompanied as far as possible by plates, drawings 
or photographs, while on the shelves are arranged additional 
objects, such as flowers, fruits, woods, specimens of fossil 
plants and models of various organs of plants, all intended 
further to illustrate the structural characteristics of the dif- 
ferent groups. This collection is arranged according to the 
most natural and thus far most generally satisfactory inter- 
pretation of the interrelation of the plant-families; it may 
be considered as falling into two main series, namely, the 
flowerless or spore-bearing plants and the flowering or seed- 
bearing plants. 
The flowerless plants fall into three subkingdoms: (1) the 
Thallophyta, in which the plant-body is not differentiated 
into stems and leaves, represented by the slime-moulds, the 
bacteria and other micro-organisms, the seaweeds, the fungi 
and the lichens; (2) the Bryophyta, represented by the 
mosses and their immediate relatives; and (3) the Pteri- 
dophyta, including the ferns and the fern-allies. 
The Thallophyta (cases 1 to 36), may be defined as plants 
without true roots, stems or leaves, but notwithstanding their 
simple structure they exhibit an infinite variety of form and 
color. 
