cae : PREFACE. 
THE present work may be taken as a second edition of my 
’ 
“Monograph on the Anatide,”’ with great additions, bringing my 
knowledge of that family down to the present time. I have printed 
it in the present form, because it is more portable for travellers in 
foreign countries, and for those who wish to study this family in the 
Zoological Gardens. 
I beg to present my thanks to Mr. G. Gray and to Mr. More for 
the facility they have given me in examining the collections under 
their care, as well as to those gentlemen who assisted me in my 
former work. 
THOS. C. EYTON. 
- Eyton, 
July 3, 1869. 
