PREFACE 
vii 
birds from sketches and notes on their plumage, prepared 
Spencer’s drawing of his dissection of the wing of Tachyeres 
cinevens (Gm.), a dissection which, apparently, has not 
hitherto been published. Mr. Tucker has also dissected the 
wing of a common wild duck for purposes of comparison, 
and has added a short commentary. Mr. William Chester- 
man made enlargements and prints of the Fuegian pictures 
suitable for reproduction from Spencer’s negatives. 
The Patagonian skull from Santa Cruz, and the adult 
Yaghan skull and young Yaghan skull and skeleton from 
kitchen middens on Navarin Island, are of such great im¬ 
portance that it has been judged best to make them the 
subject of a separate paper by Dr. L. H. Dudley Buxton, 
to be published in the near future. 
Finally, our thanks are due to Mr. G. C. Robson and 
Mr. J. R. le B. Tomlin of the British Museum (Natural 
History) for identifying the shells in the collection, which 
are all mentioned in the footnote on p. 69, to Capt. J. 
Ramsbottom of the same institution for identifying the 
botanical specimens mentioned on pp. 64, 76, and to the 
Clarendon Press for the interest they have shown and for 
the trouble they have taken. 
Again we have to thank Mrs. Young for the innumerable 
questions she has answered, and for the material she has 
collected, and Miss Hamilton for frequent help from her 
own diary and memory of events. It is to IVIiss Hamilton s 
courage and foresight that we owe the preservation and safe 
transport to this country of the journals and collection. 
The footnotes are mainly by the editors. 
R. R. M. 
T. K. P. 
OXFORD, July 1930. 
