334 DWIGHT 



Reviewed by Cope, E. D., Amer. Nat., XXVII. 1893. 

 PP- 547-549 



Keeler, C. H. 



'93 The evolution of the colors of North American land 

 birds — a reply to criticism. [Letter.] 

 Auk, X. 1893. pp. 373-377 



Keibel, F. 



'96 Otogenic und Phylogenie von Haar und Feder 



Ergebnisse d. An at. u. Entwickl. (Merkel u. Bonnet.) 

 Wiesbaden, V (for 1895). 1896. pp. 619-719, figs. 



1-73 



Kerbert, C. 



Ueber die Haut der Reptilien und andere Wirbelthiere 

 Archiv. f. mikros, Aitat., XIII. 1877. pp. 205-262, 

 pis. XVIII-XX 



Kerville, H. G. de 



'83 Sur la structure des plumes, etc. [Translation.] 

 See Gadow, H., '82 



Kingsley, J. S. 



'97 Hair and feathers 



Am. Nat., XXXI. 1897. pp. 767-777, figs. 1-14 

 Reviewed by Allen, J. A., Auk, XV. 1898. p. 207 



Klee, R. 



'86 Bau und Entwickelung der Feder 



Zeitsclu'. f. N'atu7'iviss. (Halle), 4th ser. , V(LIX). 

 1886. pp. 1 10-156, pis. 3 and 4 (folded) 

 Also Inaug. -Diss. Halle. 1886, 3 leaves, pp. 1-47, pis. 

 3 and 4 (folded) 



Knight, 0. W. 



'96 The Pine Grosbeak in captivity 

 Auk., XIII. 1896. pp. 21-24 



Kolliker, A. 



'87 Ueber die Entstehung des Pigmentes in den Oberhautge- 

 bilden 



Zeitschr. f. luiss. ZooL, XLV. 1887. pp. 713-720, 

 pis. XXXVII and XXXVIII (Vogel, fig. 14-16) 



Krukenberg, C. F. W. 

 '81-'82 Die Farbstoffe der Federn. Erste [-Vierte] Mittheilung 



