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journey of the Horn Scientific Expedition in Central Australia. 

 It could hardly be expected that the district in which the present 

 collection was made would yield any but well-known forms, 

 -especially as the late Mr. Bowyer-Bower and his assistant had 

 systematically worked the adjacent neighbourhood for nearly 12 

 months. Nevertheless, the collection, although comparatively 

 small, is of j2:reat interest, as it has increased our knowledge of 

 the range of several species, and contains the hitherto unknown 

 eggs of Lo})liO'phaps ferruginea. 



In the accompanying paper, as in the Report of the Horn 

 Expedition, Mr. Keartland's notes on his observation of the 

 -different species in the field are placed between square brackets. 



No. 1. Circus assimilis (Spotted Swamp Harrier). 



Circus assimilis, Jard. & Selby, 111. Orn., vol. I., pi. 51 (1826) ; 

 Sharpe, Cat. Bds. Brit. Mus., vol. I., p. 63 (1874) ; Ramsay, 

 Proc. Linn. Soc. N.S.W., vol, II., 2nd series, p. 165(1886); 

 North, Nests and Eggs, Austr. Bds., p. 1 (1889). 



Circus jarditiii, Gould, Bds. Austr., fol., vol. I., pi. 27 (1848); 

 Sturt, Exped. Centr. Austr., vol. II., App., p. 12 (1848). 



An adult female. Camp about five miles from the junction of 

 the Fitzroy and Margaret Rivers. Wing, 17 inches. 



[This beautiful Harrier was frequently met with in the course 

 of our trip. Near Lake Way several were observed flying slowly 

 near the ground, seeking their prey in the form of lizards, <fec. 

 Whilst collecting in the vicinity of the camel depot on August 

 18, 1896, Mr. Chas. F. Wells pointed out a nest containing two 

 eggs, from which he had just disturbed the bird. The nest was 

 about 30 feet from the ground on an horizontal branch of a gum- 

 tree. On September 25 Mr. L. A. Wells took two eggs slightly 

 incubated from a nest situated in the forked branch of a gum- 

 tree about 20 feet from the ground. They were somewhat rough- 

 shelled, white, with slight brown stains as though soiled with 

 coffee. On several occasions these birds were seen near the junction 

 of the Fitzroy and Margaret Rivers. When in quest of food they 

 seem very restless. I never saw one perch on a tree, but disturbed 

 many engaged in devouring their prey in the long grass which 

 •abounds on the tributaries of the Fitzroy River.] 



No. 2. Falco melanogenys (Black-cheeked Falcon). 



Falco melanogenys, Gould, Proc. Zool. Soc. (1837), p. 139 ; id., 

 Bds. Austr., fol., vol. L, pi. 8 (1848); Sturt, Exped. Centr. 

 Austr., vol. IL, App. p. 14 (1849); Sharpe, Cat. Bds., Brit. 

 Mus., vol. L, p. 385 (1874) ; Ramsay, Proc. Linn. Soc. N.S.W., 

 vol. IL, 2nd series, p. 166 (1887); North, Nests and Eggs, 

 Audtr. Bds.,.p. 16, pi. IIL, fig. 4 (1889), 



