president's address. 765 



55 miles in length as the crow flies, and its width is from half a 

 mile to ten miles. He has a footnote — "The lands that lie to 

 the south of the Shoalhaven River are sometimes included under 

 the term ' Illawarra '; but they are different in scenery, soil, and 

 principal products from those on the north." 



EJf. Cumberland County. 



This is the political county of the name, and includes the 

 country in the neighbourhood of the capital (Sydney). It is 

 practical and convenient to the majority of New South Wales 

 botanists to retain this as a botanical division. 



Eo. Blue Mountains County. 



This comprises the county of Cook, and is a well-defined area 

 of sandstone mountains, including a few isolated volcanic moun- 

 tain tops. The sandstone is chiefly Hawkesbury Sandstone. 



E6. Hunter Valley County. 



It comprises the counties of Northumberland, Durham, and 

 Brisbane (east of Great Northern Railway). 



It is largely sandstone, and of comparatively low altitude. The 

 sandstone is chiefly Carboniferous, though that in the southern 

 part is Permo-Carboniferous. To the north it is rather dry. 



E7. North Coast County. 



It comprises the counties of Gloucester, Macquarie, Dudley, 

 Raleigh, Fitzroy, Clarence, Richmond, and Rous (between the 

 Richmond River and the coast). 



E8 ■ Upper Richmond and Clarence Coi^nty. 



It consists mainly of elevated plains and slopes, and is grazing 

 country for the most part. It is intermediate in character between 

 New England and the coast. It comprises the counties of Gresham 

 (eastern half), Drake, Buller, and Rous (West of Richmond River), 

 This county is partly inclusive of the Upper Richmond River 

 district as defined in W. S. Campbell's paper in Agric. Gazette., 

 p. 416 (1899), with map. 



