PREFACE vii 
In conclusion, he must take the opportunity of acknow- 
ledging the invaluable assistance afforded by Mr. Howard 
Saunders, who carefully went over the whole of the proofs, 
while Dr. R. B. Sharpe was kind enough to do the same; nor 
must he fail to record his indebtedness to Professor Newton, 
Mr. Sclater, Dr. Gadow, Mr. Ogilvie Grant, and many others, 
not to mention the innumerable authors without whose previous 
labours to write a book of this description would be a well- 
nigh impossible task. Dr. Stejneger’s Volume on Birds in the 
Standard Natural History should be mentioned in particular. 
A. H. Evans. 
CAMBRIDGE, November 17, 1898. 
