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IX. A Description of the Australian Birds in the Collection of 
the Linnean Society ; with an Attempt at arranging them ac- 
cording to their natural Affinities. By N. A. Vigors, Esq., 
M.A., F.R.S., F.L.S., and F.G.S.; and Thomas Horsfield, 
M.D., F.L.S., and F.G.S. Communicated by the Zoological 
Club of the Linnean Society. : = 
Read June 21, 1825; and January 17, 1826. 
Ix submitting to the Linnean Society the following observations 
on the Ornithology of New Holland, which have been founded 
upon an examination of the birds contained in their valuable 
collection, we presume that little explanation, much less apology, 
is necessary for the mode in which our researches have been 
conducted. The mode, we need scarcely premise, accords with 
those principles which have been introduced into zoology by 
one of the most distinguished naturalists of this Society, and is 
founded upon the affinities and analogies of the groups of the 
animal world, with the view of ascertaining their station in 
nature. . : 7 en - 
In regulating our researches according to these principles, we 
have found it necessary to make some partial alterations in the 
nomenclature which has been generally adopted in this country, 
until lately, for the groups of ornithology. And in introducing 
this modification of the scientific terms of Linnzus, we feel some 
apprehensions that we may be supposed to deviate from those 
principles of our great master, which the naturalists of this coun- 
try 
