472 Messrs. Sclater and Finsch's Index to the 



2. Exhibition of, and remarks on a specimen of Ross's Gull 

 (Larus rossi). P. Z. S. 1872, p. 1. 



3. On an undescribed Bird from the Island of Rodriguez. 

 Ibis, 1872, pp. 31-34. 



The bird is a Parrot of the genus Palaornis, proposed to 

 be called P. exsul. Unfortunately only one female specimen 

 has yet been obtained. 



4. Osteology of the Solitaire. Ann. & Mag. N. H. ser. 4. ix. 

 pp.168, 169 (1872). 



Remarks on a footnote in Prof. Owen's article on this sub- 

 ject in the Trans. Zool. Soc. vii. p. 519. 



5. Osteology of the Solitaire. Ann. & Mag. N. H. ser. 4. 

 ix. p. 321 (1872). 



A rejoinder to Prof. Owen's reply to the above-mentioned 

 remarks. 



6. On the Specific Name of the Black Redstart. Ann. & 

 Mag. N. H. ser. 4. x. pp. 227, 228 (1872). 



Discusses the origin of the specific term tithys, which seems 

 to have sprung from titcs, and which Prof. Newton now writes 

 titys. 



Oellacher, Dr. Josef. 

 Die Vercinderungen des unbefruchteten Keimes des Huh- 

 nereies im Eileiter u. bei Bebrutungsversuchen. Zeitschr. 

 f. wissensch. Zoologie, vol. xxii. 1872, pp. 181-234, with 

 Tafel xiii., xiv., & xv. 

 A physiological essay upon the development of the egg in 

 the oviduct, based upon very careful and minute researches. 



Ogden, J. A. 



[See Finsch, Dr. Otto]. 



Otto, Hr. 



Ueber die Stimme iind Stimmwerkzeuge der Vbgel. Sitzungsb. 



der naturw. Gesellsch. Isis in Dresden. 1872, p. 107. 

 A slight notice of some verbal remarks on this subject. 



Owen, Professor. 



1. On Dinornis (Part xviii.) : containing a Description of 

 the Sternum and Pelvis, with an attempted Restoration of 

 Aptornis defossor, Ow. Trans. Z. S. viii. pp. 119-126, 



