(3) 



4. The herbaceous grounds, situated in a valley east of 

 the great greenhouse near the Southern Boulevard entrance, 

 containing collections of hardy herbaceous plants, arranged 

 by botanical relationship, and also a collection of similar 

 plants, arranged to demonstrate elementary botany ; the 

 economic garden, a plantation designed to illustrate hardy 

 plants whose products are directly useful to man, is being in- 

 stalled in the northern part of the same valley. 



5. The fruticetum, or collection of hardy shrubs, located 

 on the plain northeast of the museum building at the Wood- 

 lawn Road entrance and extending northward into the north 

 meadows ; this collection is also arranged by botanical 

 relationship. 



6. The deciduous arboretum, or collection of trees which 

 lose their leaves in the autumn, located along the entire east- 

 ern side of the grounds from south to north. 



In addition to these artificial features, the following natural 

 features are of special interest : 



7. The hemlock grove, a forest of the Canadian hemlock 

 spruce, clothing the hills between the museum building and 

 the Bronx River and covering about forty acres, considerable 

 portions of it being primeval. 



8. The gorge of the Bronx River, extending south from 

 the waterfall at the Lorillard Mansion, along the edge 

 of the hemlock grove to the southern boundary of the 

 Garden. 



9. The north meadows and river woods along the Bronx 

 River from the northern end of the hemlock grove to the 

 northern end of the Garden. 



1. The Conservatories 



great glass-house is 512 feet in length, with a central 

 iome about 90 feet in height, and wings extending from the 

 main range in such a way as to form a court open to the 

 southwest. The area under glass is about one acre. The 

 building stands on a terrace 5 feet in height, approached 

 by six flights of cut granite steps connecting with the path 



