316 J.D, Hooker, Introductory Essay to the Flora of Tasmania, | 
[This extensive Essay proceeds to consider the Flora of Australia uv- 
der §1. General Remarks. 2. Estimate of the numbers, distribution, 
and ‘affinity of the Classes, Orders, &c. 3. The Australian distribution 
of Natural Orders. 4, The Genera of the Australian Flora, 5. The 
Tropical Australian Flora. 6. The Flora of Extra-tropical Australia — 
7. The Flora of Countries around Spencer’s Gulf. 8. The Tasmanian 
tures of the Australian vegetation. 10. The Antarctic plants of Austra 
lia. 11. The South African features of Australian vegetation, 12. The 
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Australia and its Geology in relation to the existing Flora. 14. On 
some of the naturalized Plants of Australia. 15, A List of some of the 
Esculent Plants of Australia. 16. Outlines of the progress of Botanicl | 
iscovery in Australia, etc—From the large amount of matter suitable : 
to our pages, we have space for only two of the shorter of the 
General Remarks on’ the Flora of Australia. 
The Flora of Australia has been justly regarded as the most 
remarkable that is known, owing to the number of 
entertained that its origin is either referable to another ie | 
the world’s history from that in which the existing plants® 
€ materials and so classifying them as to allow . great 
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“ that, the great difficulty being surmounted 0 
Generalized upon, the peculiarities of the flora, 
