Recently published Ornithological Works. 615 



based on Mr, Boyd Alexander's papers in this Journal, 

 making the total number of species 48. There appear to be 

 no specimens of Cape Verde birds in the National Museum 

 of Lisbon. 



84. De Graf on the Aquatic Warbler i?i Holland. 



[Acrocep/iali(s ar/xaticus broedende in Nederland, v. II. ^^^ De Graf. 

 Tijdschr. d. Nederl. Dierk. Verein. (2) p. 303 (1898).] 



The writer records the occurrence of three specimens of 

 the Aquatic Warbler {Acrocephalus aquaticus) in North 

 Holland in 1887 and 1889, two of which are now exhibited 

 in the mounted collection of the birds of Holland belonging 

 to the Zoological Society, "Natura Artis Magistra," of Am- 

 sterdam. It has hitherto been considered as doubtful whether 

 this Warbler had ever been really met with in the Nether- 

 lands. Moreover Heer De Graf believes that he saw a young 

 bird of this species in the reed-beds of the " Schwanen- 

 water" in June 18U2, and considers that it must have been 

 bred there ; consequently this species may perhaps be added 

 to the list of birds which breed in the Netherlands. 



85-91. Finn's Notes on Birds in India. 



[85. Note on various Species of Grebes, with especial rdference to tlie 

 power of Walking- and Digestion possessed by these Birds. By F. Finn, 

 B.A., F.Z.S. J. A. S. B. Ixvi. pt. ii. p. 725. 



86. Note on the Seasonal Change of Phnnag-e in the Males of the 

 Purple Honeysucker {Arachnechthra asiatica) and of an analogous 

 American Bird {Coereba cyunea). J. A. S. B. Ixvii. pt. ii. p. 64. 



87. Contributions to the Theory of Warning Colours and Mimicry. — 

 No. lY. Experiments with various Birds : Summary and Conclusions. 

 J. A. S. B. Ixvii. pt. ii. p. 613. 



88. Exhibition of a living Specimen of the Indian Croosander [Merganser 

 comatus) and Notes on its Walking Powers. Proc. A. S. B. 1898, 

 p. 103. 



89. On certain imperfectly-known Points in the Habits and Economy 

 of Birds. — No. I. On the Position of the Feet of the " Picarian '' Birds 

 and Parrots in Flight. Proc. A. S. B. March 1898. 



90. Ditto. — No. II. On the use of the Feet for Prehension by certain 

 Passerine Birds, especially Babblers. Pros. A. S. B. May 1898. 



91. On a third Invasion of India by Baer's Pocliard ( Xi/roca haeri). 

 Proc. A. S. B. 1898, p. 134.] 



