64 
ZOOLOGICAL LITERATURE. 
AVES 
BY 
Alfred Newton, M.A., F.L.S., etc. 
It is hoped that the present ^ Record ^ will be found in all re- 
spects more perfect than its predecessor. Though its comple- 
tion has been deferred until the last moment possible, several 
parts of journals which have a claim to notice in it, as being pro- 
fessedly published in the past year, have not yet reached our hands. 
Among these may be specified the ^ Revue et Magasin de 
Zoologie,"^ of which we have not been able to see the numbers for 
November and December last, and the ^ Journal fur Ornithologie,^ 
the concluding Heft of which, we believe, has not yet appeared, 
though when it is published it will doubtless bear the date, No- 
vember 1866, at which it ought to have been issued. That the 
study of Ornithology is being most actively pursued a very cursory 
inspection of our ^ Record ^ will show ; the necessity, therefore, 
of some such annual summary as is here given becomes year by 
year greater. In its compilation we have endeavoured, as before, 
to do justice equally to the authors from whose works it is drawn 
and to the public for whose use it is designed ; and thus, with 
our sincere thanks to the many good friends, both at home and 
abroad, to whom we are especially indebted for assistance, we 
leave it to the kind consideration of our brother ornithologists. 
BIBLIOGRAPHY. 
Hartlaub, Gustav. Bericht fiber die Leistungen in der Natur- 
geschichte der Vogel wahrend des Jahres 1864. Archiv 
fur Naturgeschi elite, Jahrgang xxxi. Band ii. pp. 28. 
Berlin : 1865. 
We observe with pleasure that many of the opinions expressed 
by ourselves in the ^Record^ for last year are confirmed by Dr. Hart- 
laub in this ^^Report,^^ which goes over the same ground. Though 
not entering so much into details as our own work, the general 
features of ornithological progress in the year 1864 are sketched 
in a masterly manner. The author observes with regret that his 
countrymen appear to have a tendency to confine their researches 
to European ornithology, and consequently to be neglecting the 
