ART. 19 CONCERNING BIRDS ' TONGUES — GARDNER 33 



LiNDAHL, Joshua. 



1879. Some New Points in the Construction of the Tongues of Wood- 

 peckers. Amer. Naturalist, vol. 13, p. 43-44. 

 Lucas, F. A. 



1896. The Taxonomic Value of the Tongue in Birds. The Auk, vol. 13, 



No. 2, April, 1896, pp. 109-115. 

 The Tongues of Woodpeckers, Bulletin No. 7, U. S. Dept. of Agric, 

 Division of Ornithology and Mammalogy. 



1897. The Tongues of Birds. Report of U. S. National Museum, 1895, pp. 



1003-1020. 

 MacGillivray, William. 



1839. Note on tongue of Setochalcis vocifera. In Audubon, J. J., Ornitho- 

 logical Biography, Edinburgh, 1839, vol. 5, p. 306. 



1839. Description of tongue of Antrostomus carolinensis. Audubon, J. J., 

 Ornithological Biography, Edinburgh, 1839, vol. 5, pp. 402^03. 



1839. Tongue of Chordeiles virginianus. Same reference, p. 407. 



1840. Tongue of Caprimulgus europaeus. History of British Birds, Lon- 



don, vol. 3, pp. 630 and 634. 

 Marshall, M. E. 



1905. Note on the Tongue of Phalaenoptilus. Proc. Amer. Philos. Soc, 

 vol. 44, p. 215. 



MUDGE, G. p. 



1901. Lingual Myology of Parrots. Proc. Zool. Soc. London, vol. 1, p. 

 277-8. 

 Oates, E. W. 



Tongue of Chalcoparia. Fauna of British India. Birds, vol. 2, p. 372. 

 Wallace, A. R. 



1870. Note on the tongue of Chalcoparia, Ibis, p. 49. 

 Wetmore, Alexander. 



1918. On the Anatomy of Nyctibius with Notes on Allied Birds. Proc. 

 U. S. National Museum, vol. 54, pp. 577-586. 



