Henry Durnford’s last Expedition. 411 
Subclass Ratirm (18 species). 
KORTE) TA Geryeesin stretecinte staves 4 
DONG), (Caswariiies aeaieaerent nt: 10 
DOV Struthiones ese 4. 
In concluding these somewhat desultory remarks I must 
beg my fellow workers not to suppose that I claim any 
originality for the system above given. It having been a 
necessity for me to employ some system in certain pieces of 
work (such as the ‘ Nomenclator’ and the various catalogues 
of animals in the Zoological Society’s Gardens), I have en- 
deavoured to frame one that is free from certain objections 
which are patent in the systems.usually followed. It will be 
seen at once, by those who care to examine the references above 
given, that I have borrowed freely from the labours of Nitzsch, 
Huxley, Sundevall, Parker, and Garrod—authors who have 
lately shed a flood of light upon one of the most difficult 
zoological problems of the day, the best arrangement of the 
class of birds. My system is, in fact, that of Prof. Huxley’s 
reversed, 7. e. begimning at the top instead of the bottom, 
with slight alterations and emendations extracted from the 
works of the other authors above mentioned. 
XLI—AHenry Durnford’s last Expedition to Tucuman 
and Salta. 
(Plate XII.) 
[Tue following is an almost verbatim copy of the diary of 
the late Henry Durnford, to which allusion was made in our 
July number. Some difficulty has been experienced in the 
matter of orthography, more especially as regards the names 
of places, but every care has been taken to avoid mistakes. | 
May 14, 1878. Left the Central Station (Buenos Ayres) at 
2 p.m. for Campana. During the journey saw most of the 
birds one sees on this route, 2. e. Ciconia maguart, Larus cirrho- 
cephalus, and Ducks of many kinds, Spoonbills, a few 
Swallows (Hirundo leucorrhoa), Lichenops perspicillatus, &c. 
The opening of the Campana Railway has done a great deal 
towards fostering agriculture, and many acres of land pre- 
