OSTEOLOGY OF BIRDS 365 



118 On the Terrestrial Attitudes of Loons and Grebes. The Ibis. 



Lond. Jan. 1898, p. 46-51. 



119 Anatomy of the Swallows. Nature. Lond. Thursday, June 



30, 1898. v. 58, no. 1496, p. 199, 200. 



120 On the Alternation of Sex in a Brood of Young Sparrow 



Hawks. Am. Nat. Bost. Aug. 1898. v. 32, no. 380, 

 p. 567-70. Illus. 



121 Observations on the Classifications of Birds. Acad. Nat. Sci. 



Phila. Proc. 1898. p. 489-99. Illus. 



122 Professor Collett on the Morphology of the Cranium and the 



Auricular Openings in the North European Species of the 

 Family Strigidae. Jour. Morph. Bost. 1900. v. 17, no. 1, 

 p. 119-76, pi. 15-20, fig. 1-30. Cuts in text 1-7. 



123 A Remarkable Growth on the Bill of a Curlew (Numenius ar- 



quatus). Ornis. Paris. Nov -Dec. v. 10, no. 4, p. 477-79. 

 Illus. 



124 On the Osteology of the Woodpeckers. Am. Phil. Soc. 



Proc. Phila. Oct.-Dec. 1900. v. 39, no. 164, p. 578-622, 

 pi. 9. 11 cuts in text. 



125 On the Osteology of the Striges. Ibid. p. 665-722, pi. 10- 



17. 6 text figures. 



126 On the Systematic Position of the Sand Grouse. Am. Nat. 



Bost. Jan. 1901. v. 25, no. 409, p. 11-16. Illus. 



127 Osteology of the Herodiones. Carnegie Mus. Ann. Pittsburg, 



Pa. Apr. 1901. v. 1, no. 1, p. 158-249, pi. 5-6. 43 text 

 figures. 



128 Osteology of the Penguins. Jour. Anat. & Phys. Lond. Apr. 



1, 1901. v. 35, p. 39°-404, pl. 38. 



129 Notes on the Osteology of Scopus umbretta and Balaeniceps 



rex. Ibid. p. 405-12, pl. 39. 



130 On the Osteology and Systematic Position of the Screamers 



(Palamedea; Chauna). Am. Nat. Bost. June 1901. v. 35, 

 no. 414, p. 455-61. Plate. 



131 The Osteology of the Cuckoos [Coccyges]. Am. Phil. Soc. 



Proc. Phila. Jan. 1901. v. 40, no. 165, p. 4-51, pl. I, 2. 



132 On the Osteology and Systematic Position of the Alcae. 



Am. Nat. Bost. July 1901. v. 35, no. 415, p. 541-51. Plate. 



133 On the Osteology of the Pigeons. Jour. Morph. Bost. Sept. 



1901. v. 17, no. 3, p. 4^>7S l 4, pl. A, B. 



134 Osteology of the Flamingoes. Carnegie Mus. Ann. Pittsburg, 



Pa. 1901. 1 1295-324, pl. 9-14. 



