PKEFACK. 
In aid of this undertaking, I have again the pleasure of acknow- 
ledging a grant of £100 from the British Association for the 
Advancement of Science, and a contribution of £160 from the 
Government Grant Fund of the Eoyal Society (the third contri- 
bution from that source) ; a fourth contribution of £60 has also been 
voted by the Council of the Zoological Society of London. I thank 
my fellow Recorders very sincerely for their continued co-operation. 
Q’he engagements of Mr. Osbert Salvin, Recorder of Aves, will no 
longer permit him to assist in this work ; a most efficient successor 
to that gentleman has, however, been found in Mr. Howard 
Saunders, who has kindly undertaken the relinquished portion — 
which, from the changes in the Bird-Recorders, would appear to bo 
the most difficult in the volume. 
It. will be noticed that a scheme of separate pagination for each 
Class has been adopted in this volume. This has been tried, in the 
hope of saving time ; and, although, as regards the present occa- 
sion, all that can be said in its favour is that it has enabled me to 
'.void a longer delay than usual, it will be continued in future 
issues, as possibly leading to other improvements. 
EDWARD CALDWELL RYE. 
Royal Geographical Society, 
1, Savile Row, Burlington Gardens, London, 
May, 1878. 
