92 PRESIDENTS ADDRESS—SECTION D. 
the collections of Baxter, Caley, Cunningham, Fraser, and 
Sieber. It supplements the author’s account of the Order given 
in the “Monograph” and the “ Prodromus” to the extent of 
about 142 new species. Thus by the year 1830, Robert Brown 
had published the results of a critical study of about 350 species, 
or considerably more than half the total number of known 
species. This great advance in a knowledge of the Order was 
due in the first instance to the excellent organised collecting, 
and, secondly, to Robert Brown’s personal knowledge of and 
interest in the flora as a flora. 
In 1831, Mr. Ogilby recognised eleven genera and about 
thirty species of Australian marsupials. Of the latter he says: 
—“ At the present moment there are not more than thirty dis- 
tinct species of Australian marsupials enumerated as authentic, 
in the most correct and extensive catalogues of zoology.” But 
a considerable number of the thirty species were unknown to 
British zoologists. The number of species of Macropods known 
to Dr. Shaw (ob. 1813) was two—-the Great Grey Kangaroo and 
the Common Rat Kangaroo. The third Macropod known to 
British zoologists—omitting JM. elegans of Lambert, imperfectly 
described, and never subsequently satisfactorily identified—was 
the common Rock Wallaby (Petrogale pencillata) described by 
Gray in 1827. Up to the year mentioned the total number of 
now recognised species of Macropods established by British 
collectors and zoologists was three; and by the French natura- 
lists nine and one variety. In 1837 Dr .Gray drew up a 
synopsis of the Australian Macropods known to him; this in- 
cludes twelve species, reducible to eight or nine. As the neigh- 
bourhood of Sydney (County of Cumberland) was probably in- 
habited by seven species of Macropods at the time of the founda- 
tion of the first colony, the progress so far attained can hardly 
be characterised as of the first magnitude. 
The disparity in the progress and state of knowledge of the 
Australian Proteads and Marsupials here disclosed, may in a 
large measure be taken to be the expression of the fundamental 
difference between the botanical and zoological collecting in the 
Pre-Gouldian Era, aggravated by the want of personal know- 
ledge of the fauna under natural conditions. 
Zoological.—Sir Joseph Banks apparently did not make’ 
public any intentions he may have had respecting the publica- 
tion of a complementary work descriptive of the zoological speci- 
mens collected on Cook’s first voyage, or of such of them as 
Fabricius did not deal with. The following quotation from the 
posthumous, and presumably editorial, conclusion of Sydney 
Parkinson’s Journal seems to show what the popular expectation 
on the subject was :— 
“It may not be amiss to inform the curious in natural sub- 
jects, that Mr. Banks and Dr. Solander have discovered, in the 
