51. Stijong. A Quantitative Study of Variation in the smaller _.orth- 



American Shrikes. (Amer. Naturalist, xxxv. p. 271.) 



52, Swenandeb. Studien iiber den Ban des Schlunde3 and des Magens der 



Vogel. (Kgl. Norske Vidensk. Selek. Skrifter, 1901, No. G.) 



BULLETIN 



OF THE 



BEITISH ORNITHOLOGISTS' CLUB. 



Edited by Dr. E. BOWDLER SHAEFE. 



Vols. I. to XII. complete : as issued Gs. each net, or bound in Cloth, 

 7s. 6d. each net. 



Royal 8vo. Price £2 2s. net. 



With Memoir, Portraits, and eight Plates (four of Eggs, giving 

 97 Coloured Figures, and four Landscapes). 



PART II. (PICARI^-PASSERES) 

 Completing Vol. I. of 



00THECA WOLLEYANA : 



AN ILLUSTRATED CATALOGUE 



OF 



THE COLLECTION OF BIRDS' EGGS 



FORMED BY THE LATE 



JOHN WOLLEY, Jun., M.A., F.Z.S. 



Edited from the Original Notes 



BY 



ALFRED NEWTON. 



Imperial 8vo. Vols. 1-3 now ready. 



THE BIRDS OF AFRICA. 



BY 

 . G. E. SHELLEY, F.Z.S., F.R.G.S. 



Vol. I. Price 10s. 6d. net. 



Vols. II. and III., containing 28 Coloured Plates, price 42s. each net. 



THE VOLUMES ARE NOT SOLD SEPARATELY. 



Royal 8i«o. To be complete in G Parts. 



PARRAKEETS : 



BEING A PRACTICAL HANDBOOK TO THOSE 

 SPECIES KEPT IN CAPTIVITY. 



BY 



D. SETH-SMITH. 



Parts 1 to 4 read}', with 13 Coloured Plates. Price 6s. each net. 

 NO ODD PARTS ARE SOLD. 



LONDON: 

 It. H. PORTER, 7 PRINCES STREET, CAVENDISH SQUARE, W. 



