ee 
5 4¥,208 
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2 Birds 
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PREFATORY NOTE. 
THE present instalment completes the fifth volume of the 
late Captain Shelley's great undertaking. 
Soon after the appearance of the first part of the present 
volume in 1906, the author was struck down by a sudden 
illness—a stroke of paralysis—and although he lived on till 
November 29, 1910, he was unable to continue his labours. 
The completion of his work, however, was constantly in 
his thoughts, and shortly before his death I was asked by Mrs. 
- Shelley if I would undertake this task. It was not, however, 
until afterwards, in the middle of last year, that the arrange- 
ments could be made for doing so. Mrs. Shelley then handed 
over to me all the MSS. and the proofs of four sheets which 
were already in type. 
The plan and arrangement of the present part is mainly 
that of the late Captain Shelley, and my task has been to 
supply descriptions of some of the species, many of which 
were very incomplete, to revise the whole in the light of 
the additional facts and discoveries of the last six years, 
and to pass the work through the press. J am indebted to my 
father, Mr. P. L. Sclater, for having read through the proofs for 
me, and to Mr. Ogilvie Grant for much help and many facili- 
ties afforded to me in the Bird Room at the British Museum. 
It is hoped that the work may be completed in four or five 
more volumes. 
W. L. SCLATER. 
July 15, 1912. 
