34 NORTH HALL. 



leaf or cotyledon, and foliage-leaves with more or less parallel 

 veins, without the irregular network found in a dicotyledonous 

 leaf. The Dicotyledons, on the other hand, have a pair of 

 cotyledons and foliage - leaves with an irregularly netted 

 venation. The arrangement of the vegetative parts of the 

 plant is based on its separation into root, stem, and leaf. 

 In the right-hand wall-case the upper series of specimens illus- 

 trates the leaf, its form, veining, direction, the characters of its 

 stalk and stipules, its modification for special purposes, and its 

 arrangement on the stem and in the bud. Below the stem and 

 root are similarly treated, and above are some anatomical 

 drawings. The display of the root is continued in the lower 

 part of the opposite wall-case. 



In the central case the chief types of the flower with its 

 parts, the fruit, and the seed are exhibited. 



At the back of the bay is a large transverse section of the 

 Karri tree {Eucalyptus diversicolor) of Western Australia, a 

 species which grows to a height of 400 feet. The tree from 

 which the section was cut was about 200 years old when felled. 



The Introductory Collection of Minerals will be found in the 

 gallery devoted to that department of the collection (see p. 85). 



The Noeth Hall. 



Domesticated The North Hall, or that portion of the building situated to 



Animals, t]je northward of the principal staircase, is intended for the 



HyondB, and . . . „ , . 



Economic exhibition of the more important breeds of Domesticated 



Zoology. Animals, as well as examples of Hybrids and other Abnor- 



malities. A series of specimens illustrative of Economic 

 Zoology is likewise being added. 



The examples of Domesticated Animals are not yet per- 

 manently arranged, and many more are required before the 

 series can be regarded as at all representative. The chief ex- 

 hibits comprise Horses, Cattle, Sheep, Goats, Dogs, and Eabbits. 

 One of the main objects of this series is to show the leading 

 characteristics of the well-established breeds, both British and 

 foreign. In addition to Domesticated Animals properly so 



