• YAR 589 



2. Einige Betrachtungen fiber den gegeuwartigen Zustand der Natur- 

 geschichte Helvetians, und insbesondere des Kantons Bern. — Hopfn . 

 Mag. 1788, II. p. 2. 



Wyttenbach (S.). . 

 1. Bernisches Magazin ; vide sup. Pars I. p. 59. 



X. 



Xamarro (J. B.). 

 1. Conocimiento de las diez Aves menores de Jaula, su canto enfer- 

 medad, cura y orir. Madr. 1604, 4". fig Bohm. Bibl. II. 1, p. 493. 



Y. 



Yarrell (W.). 



1. On the Change in the Plumage of some Hen-Pheasants. — Phil. 



Trans.CXVII.p.268.— Ann. Sen. 1828, XIII. p. 71 Ferms.'QxxW. 



XV. p. 391 — Isis, 1834, X. p. 1011. 



2. On the Occurrence of some rare British Birds. — Zool. .lourn. II. 



p. 24 ; III. pp. 85, 497 F6russ. Bull. 1828, XIV. p. 116.— Isis, 



1830, VIII. p. 830; XI. p. 1150. 



3. On the small Horny Appendage to the Upper Mandible in very 

 young Chickens. — Zool. Journ. II. p. ^iZ.—Peruss. Bull. 1828, XIII. 

 p. 238.— Isis, 1830, X. p. 1053. 



4. On the Occurrence of a species of Duck new to the British Fauna 

 (^Anas rufina). — Zool. Journ. II. p. 492. — Feruss. Bull. XII. p. 129. 

 —Isis, 1830, X. p. 1065. 



5. On the Anatomy of the British Birds of Prey. — Zoo). Journ. III. 

 p. \8\.— Feruss. Bull. 1828, XV. p. 152. 



6. On the Osteology of the Fennec {Canis cerdo). — Zool. Journ. III. 

 p. 401 Feruss. Bull. 1828, XIV. p. 252. 



7. On the Osteology of the Chlamyphorus truncatus of Dr. Harlan. — 

 Zool. Journ. III. p. Si^i-.— Feruss. Bull. XVII. p. 267.— Isis, 1830, 

 IX. p. 926. — Heming. Zeitschr. III. p. 124. 



8. On the supposed Identity of Whitebait and Shad Zool. Journ. IV. 



p. 137.— Phil. Mag. ser. 2, VI. p. ISi.—Fi.russ. Bull. X"S11I. p. 291 . 

 —Isis, 1830, XII. p. 1248. 



9. On the Tapir of America.— Zool. Journ. IV. p. 210.— Isis, 1830, 

 XII. p. 1257. 



10. On the Use of the Xiphoid Bone and its Muscles in the Cormorant 

 (PeUcanus carho). — Zool. Journ. IX. p. 234. — Feruss. Bull. XIX. 

 p. 357.— Isis, 1830, XII. p. 1258. 



