BIBLIOGRAPHY 



47 



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A plea for the study of pterylosis and osteology of birds. 



82. The Food of Humming Birds. Auk, X, pp. 311-315. 



83. The Number of Ribs in Cypseloides. Auk, X, pp. 365, 366. 



84. Swifts and Humming-birds. Ibis, Ser. 6, V, pp. 365-371. 



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1894 



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Diaoussion of the plantar tendons and their significance. Also considers origin of 

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90. Invertebrate Animals. Washington School Collection. No. 4, Howell's 



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1895 



91. The Weapons and Wings of Birds. Report of the U. S. National Museum for 



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92. Additional Characters of the Macropterygidse. Auk, XII, pp. 155-157. 



Family originally denned in Auk, for January, 1889, under name of Dendroche- 

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93. A New Family of Birds. Auk, XII, p. 186. 



The Procniatidse. 



94. Tongues of Birds. Auk, XII, pp. 186, 187. 



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Those obtained by Charles Schuchert. 



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