LIST OF PUBLICATIONS. 
Aves 21 
Keller, F. C. Einige kleine Beobacbtungen aus den Alpen. Z. ges. 
Orn. 1886, pp. 252-266. 
. [See also Gypa'etus ( Falconidce ).] 
Kerschner, L. Zur Zeichnung der Yogelfeder. Arb. z. Inst. Graz, i, 
pp. 183-200. 
Although this is only a preliminary communication, there is much of 
interest in it. The author traces the complicated ornamental feather- 
marks of the peacock through all the stages back to the simple marks 
of reddish yellow and black cross-bars. This simply marked feather, 
again, is reduced to one of a yellowish brown with dark grey spots. 
The same applies to all the Rasores. The author gives an exhaustive 
tabular arrangement, in which the modifications of ornaments, as shown 
by Raptorial and Rasorial Birds, may be referred to cross-bars, spots, 
dots, eyes, arches, change of ground colour, longitudinal central stripes, 
&c. A considerable portion of the paper is devoted to a discussion as to 
how far these changes are explicable by natural or by sexual selection, 
and how far there is a distinct correlation between the sexual life (going 
hand in hand with nervous excitability) and the ornamental plumage. 
Kinberg, J. H. [See Anser ( Anatidcn ).] 
Klee, R. Bau und Entwicklung der Feder. Z. Naturw. 1886, pp. 
110-152, pi. 
A very full discussion of the feathers of Birds, under the following 
heads : 1, method of preparation ; 2, feathers of the young Bird in the 
Classes Ratitce and Carinatai ; 3, feathers of the adult (parts described, 
histology, pigment, construction of the feather and its adjuncts, develop- 
ment of the aftershaft, quills, “ cutispapillo ” “ federscheide,” history of 
the horn and marrow substance, pigment) ; 4, the forms of permanent 
feathers (contour feathers, down, hair-feathers, “ plattchen ” feathers) ; 
5, the disposition of feathers ; 6, the renewal of feathers ; 7, the first 
arrangement of- scales, feathers, and hairs ; 8, systematic arrangement by 
feathers ; 9, literature of the subject. The author wishes to make three 
classes : — 
I “ Reptile-like Birds” with only one sort of covering, like the down 
of an embryo. No means of flight, &c. 
ii “First Flyers ” with down. 
(a) With tail and feather down. 
(5) With the appearance of a greater quantity of down and 
transition of “ Federkleide ” into “ Konturfedern ” 
and down. 
hi All other Birds. 
(a) With a certain amount of flying power. 
(6) With its greatest perfection. 
Koenig, A. Die Yogelwelt auf der Insel Capri. J. f. O. 1886, pp 
487-524. 
A general account, followed by a list of 97 residents and migrants. 
Koenig-Warthausen, R. Ornithologische Jahresbericht, 1885. J.H. 
Yer. Wiirtt. 1886, pp. 146-166. 
