251 



it is especially with tlie means and objects of ordinary culture of 

 fields. To gather, therefore, from a widely-scattered literature 

 that, which might be here instructive or suggestive, was mainly 

 my task, though those gatherings may prove insignificant. 

 Likely also such enumerations, in a very condensed form, will 

 promote our communications for rural interchanges, both cis- 

 and trans-equatorial, though mainly with the countries of the 

 Northern Hemisphere, which predominantly, if not almost 

 exclusively, provided all the vegetable substances, which enter 

 iuto the main requisites of our daily life. Lists like the present 

 may aid also in naming the plants and their products with 

 scientific correctness in establishments of economic horticulture, 

 or in technologic or other educational collections. In grouping, 

 at the close of this tract, the genera of the plants enumerated, 

 according to the products which they yield, facility is afforded 

 for tracing out any particular series of plants, about which special 

 economic information may be sought, or which may prominently 

 engage at any time the attention of the cultivator, the manufac- 

 turer, or the artisan. 



Melbourne Botanic Grarden, April, 1872. 



Acacia Farnesiana, "Willd. 



Dioscorides's small Acacia. Indigenous to South Asia ; 

 found westward as far as Japan ; a native also of the warmer 

 parts of Australia, as far south as the Darling River ; found 

 spontaneously in tropical and sub-tropical America, but 

 apparently not in tropical Africa. Professor Fraas has 

 recognised in this Acacia the ancient plant. The scented 

 flowers are much sought after for perfumery. This bush 

 may also be utilized as a hedge plant, and a kind of G-um 

 Arabic may be obtained from it. 



Achillea Millefolium, L. 



Yarrow or Millfoil. Europe, Northern Asia and North 

 America. A perennial medicinal herb of considerable 

 astringency, pervaded with essential oil, containing also a 



